Q108 - Navigation Problems: Near Coastal, USCG prep certification 2026

Progress: 24% (23/94)

Learning progress ?

1. On 6 June 1983, at 1719 EST (ZD +5), what will be the predicted height of tide at Chester, PA?Not learned 2. You are at anchor in the anchorage at the entrance to Delaware Bay. You weigh anchor at 1445 DST (ZD +4) on 24 July 1983 and proceed northbound enroute to Philadelphia at a speed of 10 knots. Which of the following should you expect to experience?Not learned 3. The charted depth alongside the south face of Mystic Pier, Charlestown, MA, is 35 feet. Your maximum draft is 38 feet. You wish to have 2 feet under the bottom, on a rising tide, when you go alongside to discharge a heavy lift. What is the earliest time after 0900 EST (ZD +5), on 2 February 1983, that you can dock?Not learned 4. You are on course 251°pgc and 241° per magnetic compass, when you observe a range in line bearing 192°pgc. The chart indicates that the range is in line on a bearing of 194°T. The variation is 16°E. What is the deviation of the magnetic compass?Not learned 5. You desire to make good 152°T. The magnetic compass deviation is 4°E, the variation is 5°E, and the gyro error is 3°E. A southwesterly wind produces a 4° leeway. Which course would you steer per standard compass to make good the true course?Not learned 6. You desire to make good a true course of 129°. The variation is 7°E, magnetic compass deviation is 4°E, and gyrocompass error is 2°W. An easterly wind produces a 4° leeway. What is the course to steer per standard magnetic compass to make the true course good?Not learned 7. You desire to make good a true course of 132°. The variation is 10°W, magnetic compass deviation is 5°E, and gyrocompass error is 5°W. A northeast by east wind produces a 5° leeway. What is the course to steer per standard magnetic compass to make the true course good?Not learned 8. You desire to make good a true course of 203°. The variation is 19°E, magnetic compass deviation is 2°W, and gyrocompass error is 1°E. A westerly wind produces a 3° leeway. What is the course to steer per standard magnetic compass to make the true course good?Not learned 9. You desire to make good a true course of 223°. The variation is 2°E, magnetic compass deviation is 2°E, and gyrocompass error is 1°W. An east-southeast wind produces 3° leeway. What is the course to steer per standard magnetic compass to make the true course good?Not learned 10. Determine the duration of the first PM slack water on 3 March 1983, east of the Statue of Liberty, when the current is less than 0.1 knot.Not learned 11. Determine the time after 0300 CST (ZD +6) when the velocity of the tidal current will be 0.5 knot on 16 April 1983, at Port Arthur Canal Entrance, TX.Not learned 12. While entering a harbor on a course of 225° per gyrocompass, you take a bearing on a pair of range lights and get 220° per gyrocompass. The bearing on the chart is 217°T. The variation for the area is 6°W, and deviation is 2°W. What course would you steer per gyrocompass to make good a true course of 232°?Not learned 13. Entering a harbor, you take a bearing on a range and get 338° per gyrocompass (pgc). The true bearing from the chart is 340°T. Variation for the area is 14°E. Your course is 329° per standard magnetic compass (psc) and 338°pgc. What is the deviation on this heading?Not learned 14. You will be entering the Mystic River in Connecticut. What is the current at the Highway Bridge at 1900 EST (ZD +5) on 24 January 1983?Not learned 15. You get underway from the shipyard in Chester, PA, at 1515 DST (ZD +4) on 6 August 1983, enroute to sea. You will be turning for eight knots. What current can you expect at Fourteen Foot Bank Light?Not learned 16. You will be loading in Boston Harbor to a maximum draft of 32'06". The charted depth of an obstruction in the channel near Boston Light is 30 feet and you wish to have 3 feet of keel clearance. The steaming time from the pier to the obstruction is 01h 05m. What is the latest time (ZD +4) you can sail on 17 May 1983 and meet these requirements?Not learned 17. The moon is full and at perigee on 20 January 1983. What is the maximum current you could expect at 2350 (ZD +5) at Nantucket Shoals?Not learned 18. The predicted time that the flood begins at the entrance to Delaware Bay is 1526. You are anchored off Chestnut St. in Philadelphia. If you get underway bound for sea at 1300 and turn for 13 knots, at what point will you lose the flood current?Not learned 19. The predicted time that the flood begins at the entrance to Delaware Bay is 1526. You are anchored off Chestnut St. in Philadelphia. If you get underway bound for sea at 1430 and turn for 11 knots, at what point will you lose the ebb current?Not learned 20. The predicted time that the flood begins at the entrance to Delaware Bay is 1526. You are anchored off Chestnut St. in Philadelphia. If you get underway bound for sea at 1600 and turn for 8 knots, at what point will you lose the ebb current?Not learned 21. You are to sail from Elizabethport, N.J., on 17 November 1983 with a maximum draft of 27 feet. You will pass over an obstruction in the channel near Sandy Hook that has a charted depth of 25.5 feet. The steaming time from Elizabethport to the obstruction is 1h 50m. What is the earliest time (ZD +5) you can sail on 17 November and pass over the obstruction with 2 feet of clearance?Not learned 22. You are steering 142°pgc to make good your desired course. The gyro error is 1°E. The variation is 8°W. What should you steer by standard magnetic compass to make good the desired course? DEVIATION TABLE Magnetic Heading Deviation 120° 4°E 135° 2°E 150° 0Not learned 23. You are steering 154°pgc. The wind is southwest causing 4° leeway. The gyro error is 3°E, variation is 11°W and deviation is 7°E. What is the true course made good?Not learned 24. You are steering 318°psc. A northeasterly wind causes 3° of leeway. The variation is 14°E and the deviation table is extracted below. What will be the true course made good? DEVIATION TABLE Magnetic Heading Deviation 300° 2°E 315° 0 330° 2°WNot learned 25. You are steering a magnetic compass course of 075°. The variation for the area is 10°W, and the compass deviation is 5°E. What is the true course you are steering?Not learned 26. You swung ship and compared the magnetic compass against the gyro compass to find deviation. Gyro error is 2°W. The variation is 8°W. Find the deviation on a gyro heading of 039°. PSC PGC 030.5° 024° 061.5° 054° 092.0° 084° 122.5° 114° 152.0° 144° 181.0° 174° 210.0° 204° 239.5° 234° 269.0° 264° 298.0° 294° 327.5° 324° 358.5° 354°Not learned 27. You swung ship and compared the magnetic compass against the gyrocompass to find deviation. Gyro error is 2°W. The variation is 8°W. Find the deviation on a magnetic compass heading of 166°. PSC PGC 030.5° 024° 061.5° 054° 092.0° 084° 122.5° 114° 152.0° 144° 181.0° 174° 239.5° 234° 269.0° 264° 210.0° 204° 298.0° 294° 327.5° 324° 358.5° 354°Not learned 28. You swung ship and compared the magnetic compass against the gyrocompass to find deviation. Gyro error is 2°E. The variation is 8°W. Find the deviation on a magnetic compass heading of 143°. PSC PGC 030.5° 020° 061.5° 050° 092.0° 080° 122.5° 110° 152.0° 140° 181.0° 170° 210.0° 200° 239.5° 230° 269.0° 260° 298.0° 290° 327.5° 320° 358.5° 350°Not learned 29. You will transit the Cape Cod Canal on 7 November 1983. If you arrive at the R R Bridge at 1655 EST (ZD +5), for what period of time during your transit will you have currents of not more than 0.5 knot?Not learned 30. The true course from point A to point B is 317°. A SSW wind causes a 4° leeway, variation is 6°W and deviation is 1°E. What is the magnetic compass course to steer to make good the true course?Not learned 31. The true course between two points is 312°. Your gyrocompass has an error of 3°W. You make an allowance of 4° leeway for a west by south wind. What gyro course should be steered to make the true course good?Not learned 32. The true course between two points is 057°. Your gyrocompass has an error of 3° east and you make an allowance of 1° leeway for a north-northwest wind. Which gyro course should be steered to make the true course good?Not learned 33. The true course between two points is 078°. Your gyrocompass has an error of 2°E. You make an allowance of 3° leeway for a north wind. What gyro course should be steered to make the true course good?Not learned 34. The true course between two points is 337°. Your gyrocompass has an error of 3°E and you make an allowance of 5° leeway for a west wind. Which gyro course should be steered to make the true course good?Not learned 35. You are underway on course 000°T at 9.5 knots. The current is 082°T at 1.1 knots. What is the course being made good?Not learned 36. You are underway on course 000°T at 9.5 knots. The current is 082°T at 1.1 knots. What is the speed being made good?Not learned 37. You are underway on course 160°T at 10 knots. The current is 210°T at 0.9 knots. What is the course made good?Not learned 38. You are underway on course 160°T while turning for an engine speed of 10 knots. The current is 210°T at 0.9 knots. What is the speed being made good?Not learned 39. You are underway on course 215°T at 12 knots. The current is 000°T at 2.3 knots. What is the course made good?Not learned 40. You are underway on course 215°T while turning for an engine speed of 12 knots. The current is 000°T at 2.3 knots. What is the speed being made good?Not learned 41. You are underway on course 315°T at 14 knots. The current is 135°T at 1.9 knots. What is the speed being made good?Not learned 42. You are underway and intend to make good a course of 040°T. You experience a current with a set and drift of 190°T at 1.4 knots, and a northwest wind produces a leeway of 3°. You adjust your course to compensate for the current and leeway, while maintaining an engine speed of 10 knots. What will be your speed made good over your intended course of 040°T?Not learned 43. You are underway and intend to make good a course of 088°T. You experience a current with a set and drift of 300°T at 2.4 knots, and a southerly wind produces a leeway of 3°. You adjust your course to compensate for the current and leeway, while maintaining an engine speed of 16 knots. What will be your speed made good over your intended course of 088°T?Not learned 44. Your vessel has a draft of 34 feet. On 8 October 1983 you wish to pass over an obstruction near Jaffrey Point, NH, that has a charted depth of 31 feet. Allowing for a safety margin of 3 feet, what is the earliest time after 0900 DST (ZD +4) that this passage can be made?Not learned 45. While your vessel is proceeding down a channel you notice a range of lights in line with your vessel's mast. If your vessel is on course 001° per gyrocompass and the charted value of the range of lights is 359°T, what is the gyro compass error?Not learned 46. Your vessel is proceeding up a channel, and you see a pair of range lights that are in line ahead. The chart indicates that the direction of this pair of lights is 014°T, and the variation is 11°E. If the heading of your vessel at the time of the sighting is 009° per standard magnetic compass, what is the correct deviation?Not learned 47. Your vessel is proceeding up a channel, and you see a pair of range lights that are in line ahead. The chart indicates that the direction of this pair of lights is 147°T, and the variation is 5°E. If the heading of your vessel at the time of the sighting is 148° per standard magnetic compass, what is the correct deviation?Not learned 48. Your vessel is proceeding up a channel, and you see a pair of range lights that are in line ahead. The chart indicates that the direction of this pair of lights is 196°T, and the variation is 7°E. If the heading of your vessel at the time of the sighting is 192° per standard magnetic compass, what is the deviation?Not learned 49. Your vessel is proceeding up a channel, and you see a pair of range lights that are in line ahead. The chart indicates that the direction of this pair of lights is 212°T, and the variation is 7°W. If the heading of your vessel at the time of the sighting is 208° per standard magnetic compass, what is the correct deviation?Not learned 50. Your vessel is proceeding up a channel, and you see a pair of range lights that are in line ahead. The chart indicates that the direction of this pair of lights is 352°T, and the variation is 4°W. If the heading of your vessel at the time of the sighting is 359° per standard magnetic compass, what is the correct deviation?Not learned 51. Your vessel is proceeding up a channel, and you see a pair of range lights that are in line dead ahead. The chart indicates that the direction of this pair of lights is 093°T, and the variation is 6°E. If the heading of your vessel at the time of the sighting is 097° per standard magnetic compass, what is the correct deviation?Not learned 52. Your vessel is proceeding up a channel, and you see a pair of range lights that are in line dead ahead. The chart indicates that the direction of this pair of lights is 178°T, and the variation is 9°W. If the heading of your vessel at the time of the sighting is 180° per standard magnetic compass, what is the deviation?Not learned 53. Your vessel is proceeding up a channel, and you see a pair of range lights that are in line dead ahead. The chart indicates that the direction of this pair of lights is 283°T, and the variation is 13°E. If the heading of your vessel at the time of the sighting is 278° per standard compass, what is the deviation?Not learned 54. Your vessel is proceeding up a channel, and you see a pair of range lights that are in line dead ahead. The chart indicates that the direction of this pair of lights is 343°T, and the variation is 5° west. If the heading of your vessel at the time of the sighting is 344° per standard magnetic compass, what is the correct deviation?Not learned 55. Your vessel is proceeding up a channel steering on a pair of range lights that are in line ahead. The chart indicates that the direction of this pair of lights is 249°T, and the variation is 14°E. If the heading of your vessel at the time of the sighting is 226° per standard magnetic compass, what is the correct deviation?Not learned 56. Your vessel is steering course 027° per standard magnetic compass (psc), variation for the area is 19°W, and deviation is 2°E. The wind is from the north-northwest, producing a 5° leeway. What true course are you making good?Not learned 57. Your vessel is steering course 073°psc, variation for the area is 15°E, and deviation is 4°E. The wind is from the southeast, producing a 4° leeway. Which true course are you making good?Not learned 58. Your vessel is steering course 149°psc, variation for the area is 13°E, and deviation is 4°E. The wind is from the northeast, producing a 4° leeway. What true course are you making good?Not learned 59. Your vessel is steering course 166°psc, variation for the area is 8°W, and deviation is 3°W. The wind is from the west-southwest, producing a 2° leeway. What true course are you making good?Not learned 60. Your vessel is steering course 197°psc, variation for the area is 7°E, and deviation is 4°W. The wind is from the west, producing a 2° leeway. Which true course are you making good?Not learned 61. Your vessel is steering course 216° per standard magnetic compass, variation for the area is 9°W, and deviation is 2°E. The wind is from the east, producing a 5° leeway. What true course are you making good?Not learned 62. Your vessel is steering course 299°psc, variation for the area is 7°W, and deviation is 4°W. The wind is from the southwest, producing a 3° leeway. What true course are you making good?Not learned 63. Your vessel is steering a course of 337°psc. Variation for the area is 13°W, and deviation is 4°E. The wind is from the south, producing a 3° leeway. Which true course are you making good?Not learned 64. Your vessel is steering course 352°psc, variation for the area is 11°E, and deviation is 9°W. The wind is from the northeast, producing a 1° leeway. What true course are you making good?Not learned 65. You want to transit Pollock Rip Channel, MA, on 6 April 1983. What is the period of time around the 0955 (ZD +5) slack in which the current does not exceed 0.3 knot?Not learned 66. You wish to check the deviation of your standard magnetic compass. You find a natural range that you steer for and note that the gyrocompass heading is 034°, and the heading by standard magnetic compass is 026°. The gyro error is 1°W. Variation is 9°E. What is the deviation for that heading?Not learned 67. You wish to make good a course of 035°T while turning for an engine speed of 12 knots. The set is 340°T, and the drift is 2 knots. What course should you steer?Not learned 68. You wish to make good a course of 035°T while turning for an engine speed of 12 knots. The set is 340°T, and the drift is 2 knots. What speed will you make good along the track line?Not learned 69. You wish to make good a course of 053°T while turning for an engine speed of 16 knots. The set is 345°T, and the drift is 2.4 knots. What speed will you make good along the track line?Not learned 70. You wish to make good a course of 230°T while turning for an engine speed of 12.5 knots. The set is 180°T, and the drift is 1.7 knots. What course should you steer?Not learned 71. You wish to make good a course of 258°T, allowing 4° leeway for northerly winds. The variation is 21°W. What should you steer per standard magnetic compass to make good 258°T? DEVIATION TABLE Magnetic Heading Deviation 285° 5°E 270° 3°E 255° 1°E 240° 1°WNot learned 72. You wish to make good a course of 300°T while turning for an engine speed of 11 knots. The set is 350°T, and the drift is 2.1 knots. Which course should you steer?Not learned 73. You wish to make good a course of 350°T while turning for an engine speed of 10 knots. The set is 070°T, and the drift is 1.5 knots. What course should you steer?Not learned 74. Your 0000 zone time position on 13 June is LAT 24° 35' N, LONG 142° 26' E. Your vessel is on course 245° T, speed is 13.5 knots. What is the zone time of sunrise?Not learned 75. At 0327 ZT on 29 May, your DR position is LAT 25° 00' N, LONG 64° 15' W. You are steering 270° T at a speed of 13.6 knots. What is the zone time of sunrise?Not learned 76. At 0400 zone time on 24 June, your DR position is LAT 23° 10.0' N, LONG 085° 33' W. You are steering 295° T at a speed of 10.0 knots. What is the zone time of sunrise?Not learned 77. At 0500 zone time on 21 August, your DR position is LAT 47°00'N, LONG 125°15'W. You are steering 000°T at a speed of 9.8 knots. What is the zone time of sunrise?Not learned 78. At 0530 zone time on 20 December, you depart Cape Town (ZD -1). You are bound for New York (ZD +5), and you estimate your speed of advance at 25 knots. The distance is 6,762 miles. What is your estimated zone time of arrival at New York?Not learned 79. At 0600 zone time on 22 October, you depart Manila, LAT 14° 35.0' N, LONG 120° 58.0' E (ZD -8). You are bound for Los Angeles, LAT 33° 46.0' N, LONG 118° 11.0' W, and you estimate your speed of advance at 20.2 knots. The distance is 6,385.9 miles. What is your estimated zone time of arrival at Los Angeles?Not learned 80. At 0820 zone time on 10 April you depart Yokohama, LAT 35°27.0'N, LONG 139°39.0'E (ZD -9). You are bound for Honolulu, LAT 21°18.5'N, LONG 157°52.2'W (ZD +10) and you estimate your speed of advance at 17.5 knots. The distance is 3,397 miles. What is your estimated zone time of arrival at Honolulu?Not learned 81. At 0915 zone time on 11 May you depart Yokohama, LAT 35°27.0'N, LONG 139°39.0'E (ZD -9). You are bound for Seattle, LAT 47°36.0'N, LONG 122°22.0'W, and you estimate your speed of advance at 19.5 knots. The distance is 4,276 miles. What is your estimated zone time of arrival at Seattle?Not learned 82. At 0915 zone time on 6 March you depart Sydney, LAT 33°51.5'S, LONG 151°13.0'E (ZD -10). You are bound for Kodiak, LAT 57°47.0'N, LONG 152°25.0'W, and you estimate your speed of advance at 21 knots. The distance is 6,222 miles. What is your estimated zone time of arrival at Kodiak?Not learned 83. At 0915 zone time on 7 April you depart San Francisco, LAT 37° 48.5' N, LONG 122° 24.0' W (ZD +8). You are bound for Kobe, LAT 34° 40.0' N, LONG 135° 12.0' E, and you estimate your speed of advance at 17 knots. The distance is 4,819 miles. What is your estimated zone time of arrival at Kobe?Not learned 84. At 0915 zone time on 7 November you depart Seattle, LAT 47°36.0'N, LONG 122°22.0'W, (ZD +8). You are bound for Kobe, LAT 34°40.0'N, LONG 135°12.0'E, and you estimate your speed of advance at 18.5 knots. The distance is 4,527 miles. What is your estimated zone time of arrival at Kobe?Not learned 85. At 0915 ZT on 26 July you depart Yokohama, LAT 35°27.0'N, LONG 139°39.0'E (ZD -9). You are bound for Seattle, LAT 47°36.0'N, LONG 122°22.0'W, and you estimate your speed of advance at 14 knots. The distance is 4,245 miles. What is your estimated ZT of arrival at Seattle?Not learned 86. On 1 December your 1600 ZT DR position is LAT 22°48.0'S, LONG 91°26.0'E. You are on course 327°T at a speed of 16 knots. What will be the zone time of sunset at your vessel?Not learned 87. On 1 March your 2135 zone time DR position is LAT 23°54.0' N, LONG 63°22.0' W. At that time, you observe Schedar bearing 328°psc. The chronometer reads 01h 35m 16s, and the chronometer error is 00m 07s slow. The variation is 3.5°E. What is the deviation of the standard compass?Not learned 88. On 1 November your 1600 zone time DR position is LAT 27°48'S, LONG 91°26'E. Your vessel is on a course of 327°T at a speed of 16 knots. What will be the zone time of sunset at your vessel?Not learned 89. On 1 September your 1115 zone time DR position is LAT 25°20.0'N, LONG 28°24.0'W. At that time, you observe the Sun bearing 160.5°psc. The chronometer reads 01h 14m 58s, and the chronometer error is 01m 17s fast. The variation is 13.5°W. What is the deviation of the standard compass?Not learned 90. On 10 April, your 1630 ZT DR position is LAT 21°03.0'N, LONG 63°11.0'W. You are on course 324°T at a speed of 22 knots. What will be the zone time of sunset at your vessel?Not learned 91. On 10 August 1983 you will dock near Days Point, Weehawken, on the Hudson River, at 1800 DST (ZD +4). The charted depth alongside the pier is 24 feet (7.3 meters). What will be the depth of water when you dock?Not learned 92. On 10 August your vessel's 0426 zone time DR position is LAT 52°07'N, LONG 142°16'E, when an amplitude of the Sun is observed. The Sun's lower limb is about 20 minutes of arc above the visible horizon and bears 074.5° per standard compass. Variation in the area is 12°W. The chronometer reads 07h 24m 19s and is 02m 34s fast. Which of the following is the deviation of the standard compass?Not learned 93. On 10 December your 1300 zone time (ZT) DR position is LAT 26° 27.0' S, LONG 79° 04.0' E. You are on course 068° T at a speed of 14 knots. What will be the zone time of sunset at your vessel?Not learned 94. On 10 February in DR position LAT 25°32.0'N, LONG 135°15.0'E, you observe an amplitude of the Sun. The Sun's center is on the celestial horizon and bears 109°psc. The chronometer reads 09h 43m 25s and is 03m 20s fast. Variation in the area is 4.5°W. What is the deviation of the standard magnetic compass?Not learned 95. On 10 June your vessel's 0519 zone time DR position is LAT 27°07.0'N, LONG 92°10.0'W, when an amplitude of the Sun is observed. The Sun's center is on the visible horizon and bears 063.6° per standard magnetic compass. The variation in the area is 4.8°E. The chronometer reads 11h 17m 32s and is 01m 18s slow. What is the deviation of the compass?Not learned 96. On 10 November your 1630 zone time DR position is LAT 25°10.0'N, LONG 71°12.0'W. You are on course 335°T at a speed of 24 knots. What will be the zone time of sunset at your vessel?Not learned 97. From 1020, 3 March, to 1845, 5 March, your vessel steamed an observed distance of 845.6 miles. The average RPM was 78, and the pitch of the propeller was 20'03". What was the slip?Not learned 98. On 11 December your 1816 ZT DR position is LAT 26° 30.0' N, LONG 140° 35.0' E. At that time, you observe Venus bearing 230° pgc. The chronometer reads 09h 14m 52s and the chronometer error is 01m 02s slow. The variation is 3.5° E. What is the gyro error?Not learned 99. On 11 January your 0450 ZT position is LAT 38°42'N, LONG 14°16'W. You observe Polaris bearing 358.5°pgc. At the time of the observation the helmsman noted that he was heading 160°pgc and 173°psc. The variation is 9°W. What is the deviation for that heading?Not learned 100. On 11 January your vessel's 0655 zone time DR position is LAT 24°30'N, LONG 122°02'W, when an amplitude of the Sun is observed. The Sun's center is on the celestial horizon and bears 101.0° per standard compass. Variation in the area is 11.6°E. The chronometer reads 02h 52m 48s and is 02m 12s slow. What is the deviation of the standard compass?Not learned 101. On 11 July your 0240 ZT position is LAT 14° 52' N, LONG 34° 23' W. You observe Polaris bearing 359.8° pgc. At the time of the observation the helmsman noted that he was heading 279° pgc and 299° psc. The variation is 19° W. What is the deviation for that heading?Not learned 102. On 11 May in DR position LAT 28°13.7'N, LONG 168°36.3'E, you observe an amplitude of the Sun. The Sun's center is on the celestial horizon and bears 283°psc. The chronometer reads 07h 13m 19s and is 02m 56s slow. Variation in the area is 13°E. What is the deviation of the standard magnetic compass?Not learned 103. On 11 May in DR position LAT 37° 06.0' N, LONG 45° 45.0' W you observe an amplitude of the Sun. The Sun's center is on the visible horizon and bears 089.0° psc. The chronometer reads 07h 57m 06s and is 01m 48s slow. Variation in the area is 20.0° W. What is the deviationNot learned 104. On 11 May your vessel's 1839 ZT position is LAT 17°30'N, LONG 63°55'W, when an amplitude of the Sun's center is observed on the celestial horizon bearing 301° per standard magnetic compass. Variation for this area is 10.5°W. The chronometer reads 10h 37m 10s and is 02m 08s slow. What is the deviation of the compass?Not learned 105. On 12 June your 0400 ZT DR position is LAT 22°31.0'N, LONG 31°45.0'W. You are on course 240°T at a speed of 16.5 knots. What will be the zone time of sunrise at your vessel?Not learned 106. On 12 June at 0919 zone time, your position is LAT 26°52'N, LONG 84°34'W. The chronometer reads 03h 17m 00s. Chronometer error is 01m 40s slow. At that time, an azimuth of the Sun is obtained. The bearing is 089.5° per standard magnetic compass. Variation for this area is 4.5°E. What is the deviation of the standard magnetic compass?Not learned 107. On 12 September your 0736 zone time DR position is LAT 28°34.0'S, LONG 174°49.0'E. At that time, you observe the Sun bearing 084° per standard magnetic compass (psc). The chronometer reads 07h 38m 11s, and the chronometer error is 01m 46s fast. The variation is 11°W. What is the deviation of the standard magnetic compass?Not learned 108. At 1200 zone time on 10 October, you depart San Francisco, LAT 37°48.5'N, LONG 122°24.0'W (ZD +8). You are bound for Yokohama, LAT 35°27.0'N, LONG 139°39.0'E, and you estimate your speed of advance at 22 knots. The distance is 4,536 miles. What is your estimated zone time of arrival at Yokohama?Not learned 109. At 1210 zone time on 1 December, you depart Seattle, LAT 47° 36.0' N, LONG 122° 22.0' W (ZD +8). You are bound for Guam, LAT 13° 27.0' N, LONG 144° 37.0' E, and you estimate your speed of advance at 20 knots. The distance is 4,948 miles. What is your estimated zone time of arrival at Guam?Not learned 110. On 13 August your 0345 ZT DR position is LAT 21°35.0'N, LONG 135°26.0'W. You are on course 052°T at a speed of 14 knots. What will be the zone time of sunrise at your vessel?Not learned 111. On 13 February at 0325 zone time, your DR position is LAT 23°20'N, LONG 155°15'W. You are steering 240°T at a speed of 13.6 knots. What is the zone time of sunrise?Not learned 112. On 13 October your vessel's 1722 zone time DR position is LAT 27°36'S, LONG 136°16'E, when an amplitude of the Sun is observed. The Sun's center is on the celestial horizon and bears 266° per standard magnetic compass. Variation in the area is 2°W. The chronometer reads 08h 24m 19s and is 01m 43s fast. What is the deviation of the standard magnetic compass?Not learned 113. At 1318 ZT on 10 September, in DR position LAT 24° 05.8' N, LONG 058° 08.3' E, you observe an amplitude of the Moon. The upper limb of the Moon is on the visible horizon and bears 254° psc. Variation is 2° W. What is the deviation?Not learned 114. At 1337 ZT on July 17, in DR position LAT 30° 56.8' S, LONG 039° 36.5' W, you observe an amplitude of the Moon. The upper limb of the moon is on the visible horizon, bearing 263.0° psc. The variation is 20° W. What is the deviation?Not learned 115. On 14 January your 0746 zone time DR position is LAT 26°37.0'N, LONG 153°19.0'W. At that time, you observe the Sun bearing 123°psc. The chronometer reads 05h 49m 16s, and the chronometer error is 02m 29s fast. The variation is 3°W. What is the deviation of the standard magnetic compass?Not learned 116. At 1400 zone time on 11 April, your DR position is LAT 25° 40' N, LONG 91° 00' W. You are steering 180° T at a speed of 10.0 knots. What is your zone time of sunset?Not learned 117. At 1430 ZT on 16 April, in DR position LAT 34° 03.8' N, LONG 061° 02.5' W, you observe an amplitude of the Moon. The center of the Moon is on the visible horizon and bears 095.2° psc. The variation is 12° W. What is the deviation?Not learned 118. At 1435 ZT on 27 April, in DR position LAT 51° 56.8' N, LONG 150° 37.7' E, the Moon's upper limb is observed on the visible horizon, bearing 242.2° psc. Variation is 2° W. What is the deviation?Not learned 119. At 1444 ZT on 28 July, in DR position LAT 40° 56.8' N, LONG 167° 12.4' E, you observe an amplitude of the Moon. The upper limb of the Moon is on the visible horizon and bears 299.3° psc. The variation is 1° E. What is the deviation?Not learned 120. On 15 July in DR position LAT 22°19.0'N, LONG 154°37.0'W, you observe an amplitude of the Sun. The Sun's center is on the visible horizon and bears 298°psc. The chronometer reads 04h 45m 19s and is 01m 56s slow. Variation in the area is 7.5°W. What is the deviation of the standard magnetic compass?Not learned 121. On 15 October your 0325 zone time DR position is LAT 26° 51.0' N, LONG 138° 17.0' W. At that time, you observe Canopus bearing 167° pgc. The chronometer reads 00h 25m 36s, and the chronometer error is 00m 20s slow. The variation is 2° E. What is the gyro error?Not learned 122. At 1502 ZT on 4 August, in DR position LAT 11° 21.6' S, LONG 088° 14.3' E, you observe an amplitude of the Moon. The upper limb of the Moon is on the visible horizon and bears 289° psc. The variation is 15° W. What is the deviation?Not learned 123. At 1523 ZT on 14 June, in DR position LAT 31° 58' S, LONG 48° 42' W you observe an amplitude of the Moon. The center of the Moon is on the visible horizon and bears 118.0° psc. The variation is 10° W. What is the deviation?Not learned 124. At 1524 ZT on 14 June, in DR position LAT 30° 51' N, LONG 30° 02' W, you observe an amplitude of the Moon. The center of the Moon is on the visible horizon and bears 103.9° pgc. The variation is 10° W. What is the gyro error?Not learned 125. At 1538 ZT on 15 October, in DR position LAT 18° 12.8' S, LONG 160° 48.4' E, you observe an amplitude of the Moon. The center of the Moon is on the visible horizon and bears 276.2° psc. Variation is 10° E. What is the deviation?Not learned 126. At 1542 ZT on 23 October, in DR position LAT 37° 28.5' N, LONG 156° 17.3' E, you observe an amplitude of the Moon. The center of the Moon is on the visible horizon and bears 282.5° psc. The variation is 0.0°. What is the deviation?Not learned 127. At 1544 zone time on 5 October your DR position is LAT 25° 00' N, LONG 60° 15' W. You are steering 270° T at a speed of 6.8 knots. What is the zone time of sunset?Not learned 128. At 1547 ZT on 22 May, in DR position LAT 45° 12.8' N, LONG 028° 15.4' W, the Moon's upper limb is observed on the visible horizon, bearing 120.0° psc. Variation is 2° W. What is the deviation?Not learned 129. On 16 April in DR position LAT 28° 07.0' N, LONG 81° 47.0' W, you observe an amplitude of the Sun. The Sun's center is on the visible horizon and bears 073.5° psc. The chronometer reads 10h 53m 41s and is 02m 23s slow. Variation in the area is 11° E. What is the deviation of the magnetic compass?Not learned 130. On 16 August your 1600 ZT DR position is LAT 26°17.0'N, LONG 165°17.0'E. You are on course 301°T at a speed of 15 knots. What will be the zone time of sunset at your vessel?Not learned 131. On 16 February your 0300 ZT DR position is LAT 28°32.0'S, LONG 176°49.0'E. You are on course 082°T at a speed of 21 knots. What will be the zone time of sunrise at your vessel?Not learned 132. On 16 June your 0430 zone time DR position is LAT 29° 24.0' S, LONG 36° 16.0' E. At that time, you observe Vega bearing 341.0° psc. The chronometer reads 02h 32m 06s, and the chronometer error is 01m 54s fast. The variation is 20.5° W. What is the deviation?Not learned 133. On 16 March your 0330 ZT DR position is LAT 22° 36.0' S, LONG 76° 16.0' E. You are on course 098° T at a speed of 16 knots. What will be the ZT of sunrise at your vessel?Not learned 134. On 16 September your vessel's 0736 zone time DR position is LAT 27° 34' S, LONG 174° 49' E, when an azimuth of the Sun is observed. The chronometer time of the sight is 07h 38m 11s, and the Sun is bearing 079.8° per gyrocompass. The chronometer error is 01m 46s fast, and the variation in the area is 11.0° W. At the time of the sight, the helmsman reports that he was heading 252° pgc and 258° per magnetic compass. What is the deviation of the magnetic compass?Not learned 135. At 1610 ZT on 14 August, in DR position LAT 33° 24.6' S, LONG 028° 15.4' W, you observe an amplitude of the Moon. The center of the Moon is on the visible horizon and bears 111.0° psc. The variation is 2° E. What is the deviation?Not learned 136. At 1620 ZT on 10 September, in DR position LAT 34° 03.8' N, LONG 050° 28.4' W, you observe an amplitude of the Moon. The Moon's upper limb is observed on the visible horizon and bears 110.2° psc. The variation is 2° E. What is the deviation?Not learned 137. At 1622 ZT on 15 June, in DR position LAT 10° 15.2' N, LONG 135° 10' W, you observe an amplitude of the Moon. The center of the Moon is on the visible horizon, bearing 101.2° psc. The variation is 5° E. What is the deviation?Not learned 138. On 17 April your 1516 zone time DR position is LAT 27°24.0'N, LONG 115°24.0'E. At that time, you observe the Sun bearing 247°psc. The chronometer reads 07h 16m 26s, and the chronometer error is 00m 32s slow. The variation is 4.5°E. What is the deviation of the standard compass?Not learned 139. On 17 April your 1610 ZT DR position is LAT 22° 07.0' N, LONG 158° 16.0' W. At that time, you observe the Sun bearing 271° psc. The chronometer reads 03h 08m 52s, and the chronometer error is 01m 16s slow. The variation is 4° E. What is the deviation of the standard magnetic compass?Not learned 140. On 17 April your vessel is enroute from the Panama Canal to Kobe, Japan. Your 0400 zone time DR position is LAT 26°12.0'N, LONG 126°12.0'W. Your vessel is on course 285°T at a speed of 18 knots. What will be the zone time of sunrise at your vessel?Not learned 141. On 17 April your vessel's position is LAT 21° 00' S, LONG 78° 30' W, when an amplitude of the Sun is observed. The Sun's center is on the celestial horizon and bears 082.7° per standard magnetic compass. Variation in the area is 2.0° W. The chronometer reads 10h 59m 24s and is 01m 24s fast. What is the deviation of the compass?Not learned 142. On 17 June your 0815 zone time DR position is LAT 25°27.0'N, LONG 47°16.0'W. At that time, you observe the Sun bearing 079.5°psc. The chronometer reads 11h 15m 03s, and the chronometer error is 01m 15s fast. The variation is 3°E. What is the deviation of the standard magnetic compass?Not learned 143. On 17 May your 0300 ZT DR position is LAT 27°21.0'N, LONG 146°14.0'E. You are on course 107°T at a speed of 18 knots. What will be the zone time of sunrise at your vessel?Not learned 144. On 17 May your 1554 zone time DR position is LAT 26° 33.0' N, LONG 65° 46.0' W. At that time, you observe the Sun bearing 269° psc. The chronometer reads 07h 55m 47s, and the chronometer error is 01m 14s fast. The variation is 3° W. What is the deviation of the standard magnetic compass?Not learned 145. On 17 November your 1530 ZT DR position is LAT 27° 13.0' S, LONG 153° 21.0' W. You are on course 261° T at a speed of 14 knots. What will be the ZT of sunset at your vessel?Not learned 146. At 1730 zone time, on 3 March, your DR position is LAT 16°00'S, LONG 80°00'W. You are steering 000°T at a speed of 7.5 knots. What is the zone time of sunset?Not learned 147. On 18 October your 1330 ZT DR position is LAT 27°32.0'N, LONG 154°47.0'W. You are on course 115°T at a speed of 20 knots. What will be the zone time of sunset at your vessel?Not learned 148. At 1800 zone time, on 7 December, your DR position is LAT 22°48'S, LONG 91°26'W. You are steering 320°T at a speed of 14.0 knots. What is the zone time of sunset?Not learned 149. At 1820 zone time, on 21 March, you depart San Francisco, LAT 37° 48.5' N, LONG 122° 24.0' W (ZD +8). You are bound for Melbourne, LAT 37° 49.2' S, LONG 144° 56.0' E, and you estimate your speed of advance at 21 knots. The distance is 6,970 miles. What is your estimated zone time of arrival at Melbourne?Not learned 150. At 1845 zone time on 24 October, you depart Bimini Island, LAT 25°50.0'N, LONG 77°00.0'W (ZD +5). You are bound for Bishop Rock, LAT 49°40.0'N, LONG 6°34.0'W, and you estimate your speed of advance at 13.6 knots. The distance is 3,491 miles. What is your estimated zone time of arrival at Bishop Rock?Not learned 151. On 19 July your 1500 ZT DR position is LAT 28°25.0'N, LONG 120°28.0'W. You are on course 233°T at a speed of 10 knots. What will be the zone time of sunset at your vessel?Not learned 152. On 19 June your vessel's 0523 ZT DR position is LAT 25° 12.0' N, LONG 123° 14.0' W, when an amplitude of the Sun is observed. The Sun's center is on the visible horizon and bears 052.0° per standard compass. Variation in the area is 15° E. The chronometer reads 01h 21m 58s and is 01m 18s slow. What is the deviation of the standard compass?Not learned 153. On 19 November your 0146 ZT position is LAT 33°48'N, LONG 25°22'E. You observe Polaris bearing 359.8°pgc. At the time of the observation the helmsman noted that he was heading 224°pgc and 222.5°psc. The variation is 2°E. What is the deviation for that heading?Not learned 154. On 2 January you are on a course of 094° T at a speed of 20 knots. At 0430 ZT, your DR position is LAT 24° 12' N, LONG 71° 24' W. Determine the zone time of sunrise.Not learned 155. On 2 January your vessel's 1948 zone time position is LAT 21° 42' S, LONG 39° 12' W, when an amplitude of the Sun is observed. The Sun's center is on the celestial horizon and bears 260° per standard magnetic compass. Variation in the area is 19° W. The chronometer reads 10h 44m 36s and is 03m 24s slow. What is the deviation of the standard magnetic compass?Not learned 156. On 2 March your 2216 ZT DR position is LAT 21° 20.0' S, LONG 17° 10.0' W. At that time, you observe Saturn bearing 078° psc. The chronometer reads 11h 14m 04s, and the chronometer error is 02m 20s slow. The variation is 4.5° W. What is the deviation of the standard compass?Not learned 157. On 2 November 1983, at 1630 EST (ZD +5), what will be the predicted height of tide at Fulton, FL?Not learned 158. On 20 July your vessel's 1626 zone time DR position is LAT 27°13.0'N, LONG 63°42.0'W, when you take an azimuth of the Sun. Determine the gyro error using the azimuth information. Chronometer time: 08h 24m 18s Chronometer error: slow 02m 12s Gyro bearing: 279.3° Variation: 15°WNot learned 159. On 20 June your vessel's 1955 ZT DR position is LAT 52° 38.9' N, LONG 03° 42.7' E, when an amplitude of the Sun is observed. The Sun's center is on the visible horizon and bears 311° per gyrocompass. Variation in the area is 6° W. At the time of the observation, the helmsman noted that he was heading 352° per gyrocompass and 358° per steering compass. What is the gyro error and deviation for that heading?Not learned 160. At 2043 ZT on 13 October you are in DR position LAT 43°57.3' S, LONG 147°16.0' E, when you observe an amplitude of Venus. The planet is about one Sun's diameter above the horizon and bears 236.2°pgc. The variation is 15°E. What is the gyro error?Not learned 161. At 2048 ZT on 13 October you are in DR position LAT 44° 02.8' S, LONG 146° 58.3' E, when you observe an amplitude of Venus. The planet is about one Sun's diameter above the visible horizon and bears 222.2° psc. The variation is 15° E. What is the deviation?Not learned 162. On 21 April your 1542 zone time DR position is LAT 28°54.0'S, LONG 19°07.0'W. At that time, you observe the Sun bearing 299°psc. The chronometer reads 04h 44m 11s, and the chronometer error is 01m 54s fast. The variation is 3°E. What is the deviation of the standard compass?Not learned 163. On 21 February your 0823 zone time DR position is LAT 21° 44.0' S, LONG 80° 14.0' E. At that time, you observe the Sun bearing 096° psc. The chronometer reads 03h 25m 19s, and the chronometer error is 01m 52s fast. The variation is 5° W. What is the deviation of the standard magnetic compass?Not learned 164. On 21 May at 0630 PDT, (ZD +7), your vessel takes departure at the San Francisco Sea Buoy, LAT 37°45.0'N, LONG 122°41.5'W, enroute to Kobe, LAT 33°52.0'N, LONG 135°00.0'E via great circle. The distance is 4,245 miles, and you estimate that you will average 14.0 knots. What will be your estimated zone time of arrival?Not learned 165. On 21 November at 2100 zone time, you depart LAT 32°12.0'N, LONG 69°26.0'W enroute to LAT 12°05.0'N, LONG 7°32.0'W. The distance is 3,519 miles, and the average speed will be 12.5 knots. What is the zone time of arrival?Not learned 166. On 22 April your 0344 zone time DR position is LAT 21° 16.0' N, LONG 107° 32.0' W. At that time, you observe Spica bearing 236° psc. The chronometer reads 10h 45m 16s, and the chronometer error is 00m 25s fast. The variation is 7.5° E. What is the deviation of the standard compass?Not learned 167. On 22 February your 2045 ZT position is LAT 33°19'N, LONG 52°06'W. You observe Polaris bearing 358.1°pgc. At the time of the observation the helmsman noted that he was heading 048°pgc and 065°psc. The variation is 19°W. What is the deviation for that heading?Not learned 168. On 22 June your 0400 zone time DR position is LAT 23° 00' N, LONG 81° 45' W. You are steaming on course 110° T at a speed of 8.6 knots. What will be the zone time of sunrise at your vessel?Not learned 169. On 22 November your 1400 ZT DR position is LAT 22°16.0'N, LONG 136°37.0'E. You are on course 038°T at a speed of 22 knots. What will be the zone time of sunset at your vessel?Not learned 170. On 22 October in DR position LAT 21° 51.0' S, LONG 76° 24.0' E, you observe an amplitude of the Sun. The Sun's center is on the visible horizon and bears 256° psc. The chronometer reads 01h 01m 25s and is 01m 15s fast. Variation for the area is 2° E. What is the deviation of the standard magnetic compass?Not learned 171. At 2231 ZT on 14 July you are in DR position LAT 34° 06' S, LONG 149° 47' W, when you observe an amplitude of Jupiter. The planet is about one Sun's diameter above the visible horizon and bears 257.1° psc. The variation is 15° E. What is the deviation?Not learned 172. At 2232 ZT on 14 July you are in DR position LAT 33° 52' S, LONG 150° 03' W, when you observe an amplitude of Jupiter. The planet is about one Sun's diameter above the visible horizon and bears 268.5° pgc. The variation is 15° E. What is the gyro error?Not learned 173. At 2234 ZT on 14 July you are in DR position LAT 34° 03' N, LONG 150° 16' W, when you observe an amplitude of Saturn. The planet is about one Sun's diameter above the visible horizon and bears 272.1° pgc. The variation is 14° E. What is the gyro error?Not learned 174. At 2237 ZT on 14 July you are in DR position LAT 33°57'N, LONG 150°32'W, when you observe an amplitude of Saturn. The planet is about one Sun's diameter above the visible horizon and bears 258.6°psc. The variation is 14°E. What is the deviation?Not learned 175. On 23 August at 0604 ZT, in DR position LAT 16° 42.3' S, LONG 28° 19.3' W, you observed an amplitude of the Sun. The lower limb was a little above the horizon, and the Sun bore 076.0° pgc. At the time of the observation, the helmsman reported that he was heading 143° pgc and 167° per standard magnetic compass. The variation in the area was 23° W. What were the gyro error and deviation for that heading?Not learned 176. On 23 August in DR position LAT 24°07.0'N, LONG 136°16.0'E, you observe an amplitude of the Sun. The Sun's center is on the visible horizon and bears 074.5°psc. The chronometer reads 08h 56m 19s and is 02m 34s fast. Variation in the area is 2°W. What is the deviation of the magnetic compass?Not learned 177. On 23 July your 2100 ZT position is LAT 36°43.0'N, LONG 16°09.8'W, when you observed an azimuth of Polaris to determine the compass error. Polaris bears 359.0° per gyrocompass. At the time of the observation, the helmsman noted that he was heading 319.0° per gyrocompass and 331.0° per standard compass. Variation is 12.0°W. Which of the following statements is TRUE?Not learned 178. On 23 June in DR position LAT 21°39.0'S, LONG 106°28.0'W, you observe an amplitude of the Sun. The Sun's center is on the celestial horizon and bears 078°psc. The chronometer reads 02h 14m 39s and is 01m 43s slow. Variation in the area is 9°W. What is the deviation of the standard magnetic compass?Not learned 179. On 23 October in DR position LAT 21° 13.0' N, LONG 152° 18.0' E, you observe an amplitude of the Sun. The Sun's center is on the visible horizon and bears 259° psc. The chronometer reads 07h 21m 46s and is 01m 32s slow. Variation in the area is 5° E. What is the deviation of the magnetic compass?Not learned 180. On 23 October your vessel's 1722 zone time DR position is LAT 27°36'S, LONG 96°16'W, when an amplitude of the Sun is observed. The Sun's lower limb is about 20 minutes of arc above the visible horizon and bears 246° per standard compass. Variation in the area is 14.0°E. The chronometer reads 11h 24m 19s and is 01m 43s fast. What is the deviation of the standard compass?Not learned 181. At 2326 ZT on 22 June, your vessel's position is LAT 28° 30' N, LONG 150° 04' W. An azimuth of the planet Jupiter is observed, and the standard compass bearing is 250.4°. The chronometer reads 09h 24m 36s and is 01m 12s slow. The variation of this area is 13.5° E. What is the deviation of the standard compass?Not learned 182. On 24 August in DR position LAT 26° 49.4' N, LONG 146° 19.4' E, you observe an amplitude of the Sun. The Sun's center is on the celestial horizon and bears 084° psc. The chronometer reads 07h 55m 06s and is 01m 11s fast. Variation in the area is 15° W. What is the deviation of the magnetic compass?Not learned 183. On 24 May your vessel's 1000 ZT position is LAT 25°36.0'N, LONG 118°39.5'W, when you take an azimuth of the Sun. Determine the gyro error using the azimuth information. Chronometer time: 06h 21m 48s Chronometer error: fast 01m 36s Gyro bearing: 099.4° Variation: 11.1°ENot learned 184. On 25 August your 1926 zone time DR position is LAT 24° 17.0' S, LONG 05° 47.0' W. At that time, you observe Fomalhaut bearing 117° psc. The chronometer reads 07h 26m 52s, and the chronometer error is 00m 15s fast. The variation is 1.5° E. What is the deviation of the standard magnetic compass?Not learned 185. On 25 December your 0330 ZT DR position is LAT 25°15.0'N, LONG 32°16.0'W. You are on course 145°T at a speed of 20 knots. What will be the zone time of sunrise at your vessel?Not learned 186. On 26 February your vessel's 1615 ZT DR position is LAT 25° 14' S, LONG 57° 22' W, when an azimuth of the Sun is observed. The chronometer time of the sight is 8h 13m 19s, and the Sun is bearing 266.0° per standard magnetic compass. The chronometer error is 01m 46s slow, and the variation in the area is 6° E. What is the deviation of the standard compass?Not learned 187. On 26 January your 1615 ZT DR position is LAT 27° 14.0' S, LONG 57° 22.0' W. At that time, you observe the Sun bearing 266° psc. The chronometer reads 08h 13m 19s, and the chronometer error is 01m 46s slow. The variation is 4° E. What is the deviation of the standard magnetic compass?Not learned 188. On 26 May your 0723 zone time DR position is LAT 24°50.0'N, LONG 38°11.0'W. At that time, you observe the Sun bearing 076.5°psc. The chronometer reads 10h 25m 43s, and the chronometer error is 02m 57s fast. The variation is 7°W. What is the deviation of the standard magnetic compass?Not learned 189. On 27 June your 0734 zone time DR position is LAT 22°14.0'N, LONG 53°52.0'W. At that time, you observe the Sun bearing 069.5°psc. The chronometer reads 11h 32m 51s and the chronometer error is 01m 26s slow. The variation is 5°E. What is the deviation of the standard magnetic compass?Not learned 190. On 27 June your 1905 ZT DR position is LAT 24° 35.0' N, LONG 50° 15.0' W. At that time, you observe Saturn bearing 211° pgc. The chronometer reads 10h 04m 26s and the chronometer error is 01m 20s slow. The variation is 4.5° E. What is the gyro error?Not learned 191. On 27 June your vessel's 0816 ZT DR position is LAT 22°14'S, LONG 53°52'W, when an azimuth of the Sun is observed. The chronometer time of the sight is 12h 15m 02s, and the Sun is bearing 047.5° per standard magnetic compass. The chronometer error is 00m 46s slow, and the variation in the area is 6.0°E. What is the deviation of the standard magnetic compass?Not learned 192. On 27 March your 0330 zone time DR position is LAT 23° 32' N, LONG 154° 47' E. Your vessel is on a course of 105° T at a speed of 20 knots. What will be the zone time of sunrise at your vessel?Not learned 193. On 27 September your 0345 ZT DR position is LAT 26° 18.0' S, LONG 4° 18.0' W. You are on course 271° T at a speed of 15 knots. What will be the zone time of sunrise at your vessel?Not learned 194. On 28 July your 1937 zone time DR position is LAT 26°13.0' N, LONG 78°27.0' E. At that time, you observe Deneb bearing 048.7°pgc. The chronometer reads 02h 37m 42s, and the chronometer error is 00m 15s fast. The variation is 4°W. What is the gyro error?Not learned 195. On 28 June your 1820 ZT DR position is LAT 16°00.0'N, LONG 31°00.0'W. You are on course 310°T at a speed of 18 knots. What will be the zone time of sunset at your vessel?Not learned 196. On 28 November your vessel's 0652 DR position is LAT 37°30'N, LONG 124°12'W, when an amplitude of the Sun is observed. The Sun's center is on the visible horizon and bears 103° per standard magnetic compass. Variation in the area is 16.3°E. The chronometer reads 02h 54m 18s and is 02m 06s fast. What is the deviation of the compass?Not learned 197. On 28 November your vessel's 0712 zone time DR position is LAT 26° 54' S, LONG 45° 18' W, when you take an azimuth of the Sun. Determine the gyro error using the azimuth information. Chronometer time: 10h 09m 18s Chronometer error: slow 02m 54s Gyro bearing: 102°Not learned 198. On 28 September in DR position LAT 24°12.0'S, LONG 85°25.0'E, you observe an amplitude of the Sun. The Sun's center is on the visible horizon and bears 094°psc. The chronometer reads 11h 29m 42s and is 03m 30s slow. Variation in the area is 4°W. What is the deviation of the magnetic compass?Not learned 199. On 28 September in DR position LAT 27° 16.7' S, LONG 113° 27.2' W, you observe an amplitude of the Sun. The Sun's center is on the celestial horizon and bears 273° psc. The chronometer reads 01h 17m 26s and is 01m 49s slow. Variation in the area is 6° W. What is the deviation of the standard magnetic compass?Not learned 200. On 3 October your 0330 zone time (ZD + 5) DR position is LAT 47°41'N, LONG 86°49'W. At that time, you observe Polaris bearing 357.5°pgc. The chronometer time of the observation is 08h 32m 04s, and the chronometer is 0m 27s slow. The variation is 5.5°W. What is the gyro error?Not learned 201. On 3 October your 2122 ZT position is LAT 26°32'N, LONG 84°26'W. You observe Polaris bearing 359.8°pgc. At the time of the observation the helmsman noted that he was heading 106°pgc and 107°psc. The variation is 0°. What is the deviation for that heading?Not learned 202. On 30 July, your 0200 zone time (ZD +4) DR position is LAT 43°48'N, LONG 78°00 W. At that time, you observe Polaris bearing 008.7°psc. The chronometer time of the observation is 05h 58m 07s, and the chronometer is 0m 23s slow. The variation is 10.5°W. What is the deviation of the magnetic compass?Not learned 203. On 31 May your vessel's 1420 zone time DR position is LAT 29° 06' N, LONG 120° 06' W, when an azimuth of the Sun is observed. The bearing of the Sun per standard magnetic compass was 255.3°. The chronometer time of the observation is 10h 17m 24s. The chronometer error is 02m 32s slow. The variation for this area is 12.9° E. What is the deviation of the standard magnetic compass?Not learned 204. On 31 October your 1700 zone time DR position is LAT 27°17.0'N, LONG 116°10.0'W, when an amplitude of the Sun is observed. The Sun's center is on the visible horizon and bears 246.5° per standard magnetic compass. Variation in the area is 8.5°E. The chronometer reads 01h 01m 23s and the chronometer error is 01m 54s slow. What is the deviation of the standard compass?Not learned 205. On 4 July your vessel's 1722 zone time DR position is LAT 34°30'S, LONG 174°48'E, when an amplitude of the Sun is observed. The sun's center is on the visible horizon and bears 282° per standard magnetic compass. Variation in the area is 17.2°E. The chronometer reads 05h 21m 48s and is 02m 01s fast. What is the deviation of the compass?Not learned 206. On 4 October, your 0734 zone time DR position is LAT 24°11.0'N, LONG 162°34.0'E. At that time, you observe the Sun bearing 105.5°psc. The chronometer reads 08h 36m 11s, and the chronometer error is 01m 46s fast. The variation is 7°W. What is the deviation of the standard compass?Not learned 207. On 5 August your 0310 ZT position is LAT 09° 02' N, LONG 21° 08' W. You observe Polaris bearing 002° pgc. At the time of the observation the helmsman noted that he was heading 316° pgc and 329° psc. The variation is 15° W. What is the deviation for that heading?Not learned 208. On 5 February your 2320 ZT position is LAT 52° 28' N, LONG 23° 48' W. You observe Polaris bearing 000.2° pgc. At the time of the observation the helmsman noted that he was heading 224° pgc and 244° psc. The variation is 20° W. What is the deviation for that heading?Not learned 209. On 5 June your 0420 zone time DR position is LAT 26°47.0' N, LONG 133°19.5' W. At that time, you observe Vega bearing 298.1°psc. The chronometer reads 01h 21m 17s, and the chronometer error is 02m 25s fast. The variation is 3.5°E. What is the deviation of the standard compass?Not learned 210. On 5 May your 1300 ZT DR position is LAT 25° 16.0' S, LONG 12° 30.0' W. You are on course 012° T at a speed of 14 knots. What will be the zone time of sunset at your vessel?Not learned 211. On 5 May your 1800 ZT DR position is LAT 26°11.5'N, LONG 65°35.0'W. You are on course 270°T at a speed of 12 knots. What will be the ZT of sunset at your vessel?Not learned 212. On 5 September in DR position LAT 23° 17.0' S, LONG 154° 35.0' E, you observe an amplitude of the Sun. The Sun's center is on the visible horizon and bears 275° per standard magnetic compass. The chronometer reads 07h 49m 26s and is 01m 52s fast. Variation in the area is 3° W. What is the deviation of the standard magnetic compass?Not learned 213. On 6 August your 1552 zone time DR position is LAT 24°26.0'S, LONG 73°19.0'E. At that time, you observe the Sun bearing 302°psc. The chronometer reads 10h 55m 07s, and the chronometer error is 02m 38s fast. The variation is 6°E. What is the deviation of the standard magnetic compass?Not learned 214. On 6 November your 0752 zone time DR position is LAT 25° 11.0' N, LONG 76° 07.0' W. At that time, you observe the Sun bearing 119° psc. The chronometer reads 12h 53m 07s, and the chronometer error is 01m 19s fast. The variation is 3° W. What is the deviation of the standard magnetic compass?Not learned 215. On 6 November your vessel's 0706 zone time DR position is LAT 25° 30.0' N, LONG 85° 35.0' W, when an azimuth of the Sun is observed. The chronometer time of the sight is 01h 03m 30s, and the Sun is bearing 114.0° pgc. The chronometer error is 02m 30s slow, and the variation in the area is 2° W. What is the gyro error?Not learned 216. On 6 October your 0416 zone time DR position is LAT 25° 16.0' N, LONG 130° 25.0' E. At that time, you observe Mars bearing 083° psc. The chronometer reads 07h 16m 22s, and the chronometer error is 00m 10s fast. The variation is 1.5° E. What is the deviation of the standard compass?Not learned 217. On 7 April in DR position LAT 27°42.0'N, LONG 114°03.0'W, you observe an amplitude of the Sun. The Sun's center is on the celestial horizon and bears 076°psc. The chronometer reads 02h 10m 17s and is 01m 52s slow. Variation in the area is 8°E. What is the deviation of the standard magnetic compass?Not learned 218. On 7 December your 0350 ZT position is LAT 35°42'N, LONG 17°38'E. You observe Polaris bearing 359.7°pgc. At the time of the observation the helmsman noted that he was heading 016°pgc and 014°psc. The variation is 1°E. What is the deviation for that heading?Not learned 219. On 7 December your vessel's 0835 zone time DR position is LAT 28° 30.0' N, LONG 125° 39.3' W, when an azimuth of the Sun is observed. The chronometer time of the sight is 04h 34m 48s, and the Sun is bearing 113° per standard magnetic compass. The chronometer error is 01m 24s slow, and the variation in the area is 13.0° E. What is the deviation of the standard magnetic compass?Not learned 220. On 8 August your 0400 ZT DR position is LAT 23°16.0'S, LONG 105°33.0'W. You are on course 295°T at a speed of 25 knots. What will be the zone time of sunrise at your vessel?Not learned 221. On 8 December in DR position LAT 21°56.1'S, LONG 17°21.6'E you observe an amplitude of the Sun. The Sun's center is on the celestial horizon and bears 240.5°psc. The chronometer reads 05h 27m 21s and is 00m 47s fast. Variation in the area is 3.3°E. What is the deviation of the standard magnetic compass?Not learned 222. On 9 February your 0739 zone time DR position is LAT 23°31.0'N, LONG 143°41.0'E. At that time, you observe the Sun bearing 104.5°psc. The chronometer reads 09h 37m 12s, and the chronometer error is 01m 52s slow. The variation is 3.5°W. What is the deviation of the standard magnetic compass?Not learned 223. On 9 May your vessel's 1809 ZT DR position is LAT 48° 13.7' N, LONG 168° 36.3' E, when an amplitude of the Sun is observed. The Sun's center is on the celestial horizon and bears 283.7° per standard magnetic compass. Variation in the area is 13.0° E. The chronometer reads 07h 13m 19s and is 02m 56s fast. What is the deviation of the standard compass?Not learned 224. On 9 September your 2043 ZT position is LAT 24°18'N, LONG 66°46'W. You observe Polaris bearing 001°pgc. At the time of the observation the helmsman noted that he was heading 031°pgc and 040°psc. The variation is 11°W. What is the deviation for that heading?Not learned 225. The charted channel depth at Eastport, ME, is 28 feet. You are drawing 31.5 feet and wish 2 feet clearance under the keel. What is the earliest time after 1700 (ZD +4) on 6 September 1983 that you can enter the channel?Not learned 226. You are off the coast of Mexico and are taking a time tick for 1600. At approximately 1554, you hear the preparatory signal "VVVV de XDD" from the time signal station. Then you hear a series of 1 second dashes followed by a 9 second silent period and then a long 0.8 second dash. At the beginning of the long dash, your comparing watch reads 03h 59m 56s. When compared to the chronometer, the comparing watch reads 04h 01m 22s, and the chronometer reads 04h 02m 11s. What is the chronometer error?Not learned 227. You are taking a time tick using the 2000 signal from Kekaha-Kauai, Hawaii (WWVH). You hear a series of 1 second dashes followed by a 9 second silent period, then a long 1.3 second dash. At the beginning of the long dash, your comparing watch reads 07h 59m 54s. When compared to the chronometer, the comparing watch reads 08h 00m 00s, and the chronometer reads 08h 00m 06s. What is the chronometer error?Not learned 228. You are on a coastwise voyage bound for Marcus Hook, PA. Your speed is 15 knots. You wish to use the flood tide to facilitate docking starboard side to, heading seaward. To have the most favorable tide throughout, you should time your arrival at the entrance to Delaware Bay __________.Not learned 229. At your current speed of 19 knots you only have enough fuel remaining to travel 265 miles. You must travel 731 miles to reach your destination. What should you reduce your speed (knots) to in order to reach your destination?Not learned 230. You depart LAT 22° 35.0' N, LONG 157° 30.0' W, and steam 4505.0 miles on course 135° T. What are the latitude and longitude of your arrival by Mercator sailing?Not learned 231. You depart LAT 32° 16.6' N, LONG 68° 28.0' W. What is the course and distance as calculated by Mercator sailing to a position at LAT 43° 12.2' N, LONG 55° 39.0' W?Not learned 232. You depart LAT 33°45.0'N, LONG 118°30.0'W, and steam 2216 miles on course 250°T. What is the longitude of your arrival by Mercator sailing?Not learned 233. You depart LAT 34° 22' S, LONG 18° 23' E, and steam 3174 miles on course 282° T. What is the longitude of your arrival by Mercator sailing?Not learned 234. You depart LAT 37° 36' N, LONG 123° 00' W, and steam 2022 miles on course 241° T. What is the longitude of your arrival by Mercator sailing?Not learned 235. You depart LAT 40°42.0'N, LONG 74°01.0'W, and steam 3365.6 miles on course 118°T. What is the longitude of your arrival by Mercator sailing?Not learned 236. You depart LAT 49°45.0'N, LONG 06°35.0'W, and steam 3599 miles on course 246.5°T. What is the longitude of your arrival by Mercator sailing?Not learned 237. You desire to make good a true course of 007°. The variation is 5°E, magnetic compass deviation is 3°W, and gyrocompass error is 2°E. A southwest by west wind produces a 2° leeway. What is the course to steer per standard magnetic compass to make the true course good?Not learned 238. You desire to make good a true course of 038°. The variation is 5°E, magnetic compass deviation is 4°W, and gyrocompass error is 4°W. A southeasterly wind produces a 4° leeway. What is the course to steer per standard magnetic compass to make the true course good?Not learned 239. You desire to make good a true course of 046°. The variation is 6° E, magnetic compass deviation is 12° W, and the gyrocompass error is 3° W. A northerly wind produces a 5° leeway. What is the course to steer per standard magnetic compass to make good the true course?Not learned 240. You desire to make good a true course of 067°. The variation is 11°W, magnetic compass deviation is 3°E, and gyrocompass error is 1°W. A northwesterly wind produces a 5° leeway. What is the course to steer per standard magnetic compass to make the true course good?Not learned 241. You desire to make good a true course of 157°. The variation is 15°E, magnetic compass deviation is 9°W, and gyrocompass error is 3°E. A southwesterly wind produces a 2° leeway. What is the course to steer per standard magnetic compass to make the true course good?Not learned 242. You desire to make good a true course of 174°. The variation is 17°W, magnetic compass deviation is 4°W, and gyrocompass error is 4°E. A west-southwest wind produces a 4° leeway. What is the course to steer per standard magnetic compass to make the true course good?Not learned 243. You desire to make good a true course of 236°. The variation is 8°E, magnetic compass deviation is 1°E, and gyrocompass error is 3°W. A south-southeasterly wind produces a 1° leeway. What is the course to steer per standard magnetic compass (psc) to make the true course good?Not learned 244. You desire to make good a true course of 279°. The variation is 8°W, magnetic compass deviation is 3°E, and gyrocompass error is 1°E. A north-northwesterly wind produces 3° leeway. What is the course to steer per standard magnetic compass (psc) to make the true course good?Not learned 245. You desire to make good a true course of 329°. The variation is 13° W, magnetic compass deviation is 4° E, and gyrocompass error is 2° W. A southerly wind produces a 1° leeway. What is the course to steer per standard magnetic compass to make the true course good?Not learned 246. You desire to make good a true course of 347°. The variation is 11° E, magnetic compass deviation is 7° W, and gyrocompass error is 4° W. A north by east wind produces a 4° leeway. What is the course to steer per standard magnetic compass to make the true course good?Not learned 247. Determine the first time after 1200 EST (ZD +5) when the velocity of the current will be 0.5 knot on 18 November 1983, at Marcus Hook, PA.Not learned 248. Determine the time after 0730 EST (ZD +5) when the velocity of the current will be 2.1 knots on 26 March 1983, at Fort Pulaski, GA.Not learned 249. While enroute from Cape Town to Rio a vessel's course is 281° pgc. The variation for the locality is 24° W. The deviation is 4° E. The gyro error is 2° W. What is the true course made good?Not learned 250. While enroute from Montevideo to Walvis Bay a vessel's course is 116° psc. The variation for the locality is 25° W and the deviation is 6° W. What is the true course made good if a southerly wind produces 1° leeway?Not learned 251. Enroute from Rio to Montevideo, the true course is 215°; the gyro error is 2° west. A north wind causes 3° leeway. What course would you steer per gyrocompass to make good the true course?Not learned 252. The vessel's true course is 071°. Variation is 14°E. Deviation is 4°W. A northerly breeze causes 2° leeway. What course would you steer psc in order to make good the true course?Not learned 253. You get underway from the oil terminal at Marcus Hook, PA, at 0815 ZT (ZD +5) on 20 February 1983, enroute to sea. You will be turning for 11 knots. What is the approximate current when you are abreast Reedy Island?Not learned 254. You are heading 328° pgc to make good a course of 332° T, allowing 3° leeway for westerly winds and 1° E gyro error. The variation is 17° E. What should your heading be by standard magnetic compass to make good 332° T. DEVIATION TABLE MAGNETIC HEADING DEV. 345° 1° E 330° 1° W 315° 3° WNot learned 255. What will be the height of tide at Three Mile Harbor Entrance, Gardiners Bay, NY, at 0700 (ZD +5) on 14 Nov 1983?Not learned 256. On May 20 your 2300, (ZD +4), DR position is LAT 42° 07' N, LONG 81° 02' W. At that time, you observe Polaris bearing 012° psc. The chronometer time of the observation is 03h 02m 23s, and the chronometer is 1m 17s fast. The variation is 9.5° W. What is the deviation of the magnetic compass?Not learned 257. You must average 16.25 knots to reach port at a designated time. Your propeller has a pitch of 21'08", and you estimate 4% negative slip. How many revolutions per minute must you average to arrive on time?Not learned 258. The observed distance for a day's run was 302.7 miles. The propeller had a pitch of 20'06", and the average RPM was 67. What was the slip?Not learned 259. The observed noon to noon run for a 24 hour period is 489 miles. The average RPM for the day was 95. The pitch of the wheel is 22.5 feet. What is the slip of the wheel?Not learned 260. What is the period of time from around 1008 DST (ZD +4) at Canapitsit Channel, MA, on 7 August 1983, in which the current does not exceed 0.4 knot?Not learned 261. If the pitch of the propeller is 19.4 feet, and the revolutions per day are 96,713, calculate the day's run allowing 6% positive slip.Not learned 262. If the pitch of the propeller is 19.7 feet, and the revolutions per day are 86,178, calculate the day's run allowing 3% negative slip.Not learned 263. If the pitch of the propeller is 20.1 feet, and the revolutions per day are 118,178, calculate the day's run allowing 6% negative slip.Not learned 264. If the pitch of the propeller is 20.6 feet, and the revolutions per day are 107,341, calculate the day's run allowing 3% positive slip.Not learned 265. If the pitch of the propeller is 21.2 feet, and the revolutions per day are 93,660, calculate the day's run allowing 5% positive slip.Not learned 266. If the pitch of the propeller is 21.3 feet, and the revolutions per day are 126,214, calculate the day's run allowing 4% positive slip.Not learned 267. If the pitch of the propeller is 21.5 feet, and the revolutions per day are 96,666, calculate the day's run allowing 9% negative slip.Not learned 268. If the pitch of the propeller is 22.4 feet, and the revolutions per day are 103,690, calculate the day's run allowing 9% positive slip.Not learned 269. If the pitch of the propeller is 23.2 feet, and the revolutions per day are 94,910, calculate the day's run allowing 11% negative slip.Not learned 270. If the pitch of the propeller is 24.8 feet, and the revolutions per day are 93,373, calculate the day's run allowing 11% positive slip.Not learned 271. If the pitch of the propeller is 25.1 feet, and the revolutions per day are 91,591, calculate the day's run allowing 7% positive slip.Not learned 272. If the pitch of the propeller is 26.3 feet, and the revolutions per day are 87,421, calculate the day's run allowing 7% negative slip.Not learned 273. If the pitch of the propeller is 26.7 feet, and the revolutions per day are 131,717, calculate the day's run allowing 4% negative slip.Not learned 274. The pitch of the propeller on your vessel is 19'09". You estimate the slip at -3%. If you averaged 82 RPM for the day's run, how many miles did you steam?Not learned 275. The predicted time that the ebb begins at the entrance to Delaware Bay is 1526. You are anchored off Chestnut St. in Philadelphia. If you get underway bound for sea at 1630 and turn for 12 knots, at what point will you lose the flood current?Not learned 276. While proceeding up a channel on course 010° per gyrocompass, you notice a pair of range lights in alignment with the masts of your vessel when viewed forward. A check of the chart shows the range to be 009°T and the variation to be 15°W. If the ship's course is 026°psc, what is the deviation for the present heading?Not learned 277. The propellers on your twin screw vessel have a pitch of 16'04". What is the distance in a day's run if the average RPM is 94, and you estimate 7% positive slip?Not learned 278. The propeller on a vessel has a diameter of 18.8 feet and a pitch of 21.4 feet. What would be the slip if the vessel cruised 378 miles in a 24 hour day (observed distance) at an average RPM of 76?Not learned 279. The propeller on a vessel has a diameter of 19.9 feet and a pitch of 21.6 feet. What would be the apparent slip if the vessel cruised 395 miles in a 23 hour day (observed distance) at an average RPM of 78?Not learned 280. The propeller on a vessel has a diameter of 20.2 feet and a pitch of 19.0 feet. What would be the apparent slip if the vessel cruised 367 miles in a 24 hour day (observed distance) at an average RPM of 84?Not learned 281. The propeller on a vessel has a diameter of 20.6 feet and a pitch of 23.4 feet. What would be the apparent slip if the vessel cruised 538 miles in a 24 hour day (observed distance) at an average RPM of 87?Not learned 282. The propeller on a vessel has a diameter of 20.9 feet and a pitch of 19.6 feet. What would be the apparent slip if the vessel cruised 447 miles in a 23 hour day (observed distance) at an average RPM of 108?Not learned 283. The propeller on a vessel has a diameter of 21.2 feet and a pitch of 20.0 feet. What would be the apparent slip if the vessel cruised 391 miles in a 24 hour day (observed distance) at an average RPM of 88?Not learned 284. The propeller on a vessel has a diameter of 21.5 feet and a pitch of 24.5 feet. What would be the apparent slip if the vessel cruised 458 miles in a 23 hour day (observed distance) at an average RPM of 78?Not learned 285. The propeller on a vessel has a diameter of 24.0 feet and a pitch of 21.3 feet. What would be the slip if the vessel cruised 510 miles in a 24 hour day (observed distance) at an average RPM of 86?Not learned 286. The propeller on a vessel has a diameter of 24.6 feet and a pitch of 26.1 feet. What would be the apparent slip if the vessel cruised 462 miles in a 24 hour day (observed distance) at an average RPM of 72?Not learned 287. The propeller on your vessel has a pitch of 18'09". If the observed distance for a day's run was 399.4 miles and the average RPM was 86, which statement is TRUE?Not learned 288. The propeller of a vessel has a pitch of 19.0 feet. If the vessel traveled 183.5 miles (observed distance) in 24 hours at an average of 44 RPM, what was the slip?Not learned 289. The propeller on your vessel has a pitch of 22.8 feet. From 0800, 18 April, to 1020, 19 April, you steamed an observed distance of 403.6 miles. If your average RPM was 74, what was the slip?Not learned 290. You receive a distress call from a vessel reporting her position as LAT 30°21'N, LONG 88°34'W. Your position is LAT 24°30'N, LONG 83°00'W. Determine the true course and distance to the distress scene by Mercator sailing.Not learned 291. You are to sail from Elizabethport, NJ, on 22 May 1983 with a maximum draft of 28 feet. You will pass over an obstruction in the channel near Sandy Hook that has a charted depth of 27 feet. The steaming time from Elizabethport to the obstruction is 1h 40m. What is the earliest time (ZD +4) you can sail on the afternoon of 22 May and pass over the obstruction with 3 feet of clearance?Not learned 292. You are to sail from Elizabethport, N.J., on 22 May 1983, with a maximum draft of 28 feet. You will pass over an obstruction in the channel near Sandy Hook that has a depth of 26.5 feet. The steaming time from Elizabethport to the obstruction is 1h 40m. What is the earliest time (ZD + 4) you can sail on the afternoon of 22 May and pass over the obstruction with 2 feet of clearance?Not learned 293. On September 9 your 2130 zone time (ZD +5) DR position is LAT 45°08'N, LONG 82°38'W. At that time, you observe Polaris bearing 000.5°pgc. The chronometer time of the observation is 02h 26m 09s, and the chronometer is 1m 43s slow. The variation is 8.7°W. What is the gyro error?Not learned 294. What will be the set of the rotary current at Nantucket Shoals at 1245 (ZD +5) 14 January 1983?Not learned 295. Your ship is entering port from sea, and you sight a pair of range lights. When in line, they bear 315° per standard magnetic compass. The chart shows that the range bearing is 312°T, and that variation is 6°W. What is the deviation of your compass at the time of the sighting?Not learned 296. The speed of advance necessary to arrive in port at a designated time is 15.8 knots. The pitch of the propeller is 20.75 feet. You estimate 5% positive slip. How many revolutions per minute must you turn to make the necessary speed?Not learned 297. The speed necessary to reach port at a designated time is 18.7 knots. The propeller pitch is 24'03", and you estimate 3% positive slip. How many revolutions per minute will the shaft have to turn?Not learned 298. If the speed necessary for reaching port at a designated time is 12.6 knots and the pitch of the propeller is 13.6 feet, how many revolutions per minute will the shaft have to turn, assuming no slip?Not learned 299. If the speed necessary for reaching port at a designated time is 15.7 knots and the pitch of the propeller is 23.4 feet, how many revolutions per minute will the shaft have to turn, assuming a 6% negative slip?Not learned 300. If the speed necessary for reaching port at a designated time is 16.4 knots and the pitch of the propeller is 23.8 feet, how many revolutions per minute will the shaft have to turn, assuming a 6% positive slip?Not learned 301. If the speed necessary for reaching port at a designated time is 16.8 knots and the pitch of the propeller is 22.3 feet, how many revolutions per minute will the shaft have to turn, assuming a 4% negative slip?Not learned 302. If the speed necessary for reaching port at a designated time is 17.4 knots and the pitch of the propeller is 25.6 feet, how many revolutions per minute will the shaft have to turn, assuming a 3% positive slip?Not learned 303. If the speed necessary for reaching port at a designated time is 17.8 knots and the pitch of the propeller is 24.7 feet, how many revolutions per minute will the shaft have to turn, assuming a 7% positive slip?Not learned 304. If the speed necessary for reaching port at a designated time is 18.2 knots and the pitch of the propeller is 23.9 feet, how many revolutions per minute will the shaft have to turn, assuming a 2% negative slip?Not learned 305. If the speed necessary for reaching port at a designated time is 18.5 knots and the pitch of the propeller is 21.7 feet, how many revolutions per minute will the shaft have to turn, assuming a 4% negative slip?Not learned 306. If the speed necessary for reaching port at a designated time is 18.6 knots, and the pitch of the propeller is 26.2 feet, how many revolutions per minute will the shaft have to turn, assuming a 4% negative slip?Not learned 307. If the speed necessary for reaching port at a designated time is 19.2 knots and the pitch of the propeller is 22.7 feet, how many revolutions per minute will the shaft have to turn, assuming a 4% positive slip?Not learned 308. If the speed necessary for reaching port at a designated time is 19.6 knots and the pitch of the propeller is 24.6 feet, how many revolutions per minute will the shaft have to turn, assuming a 5% positive slip?Not learned 309. If the speed necessary for reaching port at a designated time is 20.7 knots and the pitch of the propeller is 23.8 feet, how many revolutions per minute will the shaft have to turn, assuming a 3% negative slip?Not learned 310. If the speed necessary for reaching port at a designated time is 21.6 knots and the pitch of the propeller is 22.5 feet, how many revolutions per minute will the shaft have to turn, assuming a 2% positive slip?Not learned 311. If the speed necessary for reaching port at a designated time is 23.7 knots and the pitch of the propeller is 20.8 feet, how many revolutions per minute will the shaft have to turn, assuming a 7% negative slip?Not learned 312. You have steamed 1124 miles at 21 knots, and consumed 326 tons of fuel. If you have 210 tons of usable fuel remaining, how far can you steam at 17 knots?Not learned 313. You have steamed 1134 miles at 10 knots and consumed 121 tons of fuel. If you have to steam 1522 miles to complete the voyage, how many tons of fuel will be consumed while steaming at 12 knots?Not learned 314. You have steamed 1175 miles at 19 knots, and consumed 257 tons of fuel. If you have to steam 1341 miles to complete the voyage, how many tons of fuel will be consumed while steaming at 18 knots?Not learned 315. You have steamed 1260 miles at 18 knots, and consumed 205 tons of fuel. If you have to steam 1423 miles to complete the voyage, how many tons of fuel will be consumed while steaming at 16 knots?Not learned 316. You have steamed 174 miles and consumed 18.0 tons of fuel. If you maintain the same speed, how many tons of fuel will you consume while steaming 416 miles?Not learned 317. You have steamed 142 miles and consumed 21.0 tons of fuel. If you maintain the same speed, how many tons of fuel will you consume while steaming 465 miles?Not learned 318. You have steamed 150 miles and consumed 17 tons of fuel. If you maintain the same speed, how many tons of fuel will you consume while steaming 350 miles?Not learned 319. You have steamed 156 miles and consumed 19 tons of fuel. If you maintain the same speed, how many tons of fuel will you consume while steaming 273 miles?Not learned 320. You have steamed 1587 miles at 11.2 knots, and have consumed one-half of your total fuel capacity of 2840 bbls. What is the maximum speed you can steam to complete the remaining 1951 miles?Not learned 321. You have steamed 162 miles and consumed 14.0 tons of fuel. If you maintain the same speed, how many tons of fuel will you consume while steaming 285 miles?Not learned 322. You have steamed 199 miles and consumed 23.0 tons of fuel. If you maintain the same speed, how many tons of fuel will you consume while steaming 410 miles?Not learned 323. You have steamed 216 miles and consumed 19.0 tons of fuel. If you maintain the same speed, how many tons of fuel will you consume while steaming 315 miles?Not learned 324. You have steamed 265 miles and consumed 25.0 tons of fuel. If you maintain the same speed, how many tons of fuel will you consume while steaming 346 miles?Not learned 325. You have steamed 300 miles and consumed 34 tons of fuel. If you maintain the same speed, how many tons of fuel will you consume while steaming 700 miles?Not learned 326. You have steamed 369 miles at 16 knots and burning 326 barrels of fuel per day. You must decrease your consumption to 212 barrels per day with 271 miles left in your voyage. What must you reduce your speed (kts) to in order to burn this amount of fuel?Not learned 327. You have steamed 432 miles at 18 knots and burning 406 barrels of fuel per day. You must decrease your consumption to 221 barrels per day with 190 miles left in your voyage. What must you reduce your speed (kts) to in order to burn this amount of fuel?Not learned 328. You have steamed 449 miles at 19 knots and burning 476 barrels of fuel per day. You must decrease your consumption to 185 barrels per day with 362 miles left in your voyage. What must you reduce your speed (kts) to in order to burn this amount of fuel?Not learned 329. You have steamed 463 miles at 19 knots and burning 440 barrels of fuel per day. You must decrease your consumption to 200 barrels per day with 410 miles left in your voyage. What must you reduce your speed (kts) to in order to burn this amount of fuel?Not learned 330. You have steamed 520 miles at 22 knots and burning 319 barrels of fuel per day. You must decrease your consumption to 137 barrels per day with 410 miles left in your voyage. What must you reduce your speed (kts) to in order to burn this amount of fuel?Not learned 331. You have steamed 499 miles at 21 knots and are burning 462 barrels of fuel per day. You must decrease your consumption to 221 barrels per day with 311 miles left in your voyage. What must you reduce your speed (kts) to in order to burn this amount of fuel?Not learned 332. You have steamed 504 miles at 21 knots and burning 633 barrels of fuel per day. You must decrease your consumption to 410 barrels per day with 399 miles left in your voyage. What must you reduce your speed (kts) to in order to burn this amount of fuel?Not learned 333. You have steamed 525 miles at 16.0 knots, and consumed 105 tons of fuel. If you have 308 tons of usable fuel remaining, how far can you steam at 19 knots?Not learned 334. You have steamed 540 miles at 22 knots and burning 618 barrels of fuel per day. You must decrease your consumption to 372 barrels per day with 299 miles left in your voyage. What must you reduce your speed (kts) to in order to burn this amount of fuel?Not learned 335. You have steamed 560 miles at 23 knots and burning 524 barrels of fuel per day. You must decrease your consumption to 260 barrels per day with 316 miles left in your voyage. What must you reduce your speed (kts) to in order to burn this amount of fuel?Not learned 336. You have steamed 607 miles at 17.0 knots, and consumed 121 tons of fuel. If you have 479 tons of usable fuel remaining, how far can you steam at 14.5 knots?Not learned 337. You have steamed 632 miles at 18.5 knots and consumed 197 tons of fuel. If you have 278 tons of usable fuel remaining, how far can you steam at 15.0 knots?Not learned 338. You have steamed 726 miles at 17.5 knots, and consumed 138 tons of fuel. If you have 252 tons of usable fuel remaining, how far can you steam at 13.5 knots?Not learned 339. You have steamed 746 miles at 14.0 knots and consumed 152 tons of fuel. If you have 201 tons of usable fuel remaining, how far can you steam at 10 knots?Not learned 340. You have steamed 775 miles at 17 knots, and consumed 145 tons of fuel. If you have to steam 977 miles to complete the voyage, how many tons of fuel will be consumed while steaming at 18 knots?Not learned 341. You have steamed 803 miles at 13 knots, and consumed 179 tons of fuel. If you have 371 tons of usable fuel remaining, how far can you steam at 16 knots?Not learned 342. You have steamed 824 miles at 15.5 knots, and consumed 179 tons of fuel. If you have 221 tons of usable fuel remaining, how far can you steam at 18 knots?Not learned 343. You have steamed 836 miles at 14.5 knots, and consumed 191 tons of fuel. If you have 310 tons of usable fuel remaining, how far can you steam at 17 knots?Not learned 344. You have steamed 916 miles at 13 knots, and consumed 166 tons of fuel. If you have 203 tons of usable fuel remaining, how far can you steam at 14 knots?Not learned 345. You have steamed 916 miles at 13 knots, and consumed 166 tons of fuel. If you have to steam 1325 miles to complete the voyage, how many tons of fuel will be consumed while steaming at 14 knots?Not learned 346. You have steamed 918 miles at 15.0 knots and consumed 183 tons of fuel. If you have 200 tons of usable fuel remaining, how far can you steam at 12 knots?Not learned 347. You have steamed 925 miles at 13.5 knots, and consumed 181 tons of fuel. If you have 259 tons of usable fuel remaining, how far can you steam at 16 knots?Not learned 348. You have steamed 989 miles at 16.5 knots and consumed 215 tons of fuel. If you have 345 tons of usable fuel remaining, how far can you steam at 13 knots?Not learned 349. While steaming at 12 knots, your vessel burns 45 tons of fuel per day. What will be the rate of fuel consumption if you decrease speed to 11.5 knots?Not learned 350. While steaming at 12.3 knots, your vessel burns 168 bbls of fuel per day. What will be the rate of fuel consumption if you increase speed to 13.5 knots?Not learned 351. While steaming at 13.5 knots, your vessel consumes 251 barrels of fuel oil per day. In order to reduce consumption to 129 barrels of fuel oil per day, what is the maximum speed the vessel can turn for?Not learned 352. While steaming at 14 knots, your vessel burns 276 bbls of fuel per day. What will be the rate of fuel consumption if you decrease speed to 11.7 knots?Not learned 353. While steaming at 14.5 knots, your vessel consumes 242 barrels of fuel oil per day. In order to reduce consumption to 152 barrels of fuel oil per day, what is the maximum speed the vessel can turn for?Not learned 354. While steaming at 14.5 knots, your vessel consumes 319 barrels of fuel oil per day. In order to reduce consumption to 217 barrels of fuel oil per day, what is the maximum speed the vessel can turn for?Not learned 355. While steaming at 15 knots, your vessel burns 326 bbls of fuel per day. What will be the rate of fuel consumption if you decrease speed to 12.2 knots?Not learned 356. While steaming at 15.0 knots, your vessel consumes 326 barrels of fuel oil per day. In order to reduce consumption to 178 barrels of fuel oil per day, what is the maximum speed the vessel can turn for?Not learned 357. While steaming at 15.5 knots, your vessel consumes 333 barrels of fuel oil per day. In order to reduce consumption to 176 barrels of fuel oil per day, what is the maximum speed the vessel can turn for?Not learned 358. While steaming at 16.3 knots, your vessel consumes 363 barrels of fuel oil per day. In order to reduce consumption to 298 barrels of fuel oil per day, what is the maximum speed the vessel can turn for?Not learned 359. While steaming at 16.5 knots, your vessel consumes 349 barrels of fuel oil per day. In order to reduce consumption to 189 barrels of fuel oil per day, what is the maximum speed the vessel can turn for?Not learned 360. While steaming at 17.0 knots, your vessel consumes 382 barrels of fuel oil per day. In order to reduce consumption to 223 barrels of fuel oil per day, what is the maximum speed the vessel can turn for?Not learned 361. While steaming at 17.5 knots, your vessel consumes 378 barrels of fuel oil per day. In order to reduce consumption to 194 barrels of fuel oil per day, what is the maximum speed the vessel can turn for?Not learned 362. While steaming at 18.9 knots, your vessel consumes 386 barrels of fuel oil per day. In order to reduce consumption to 251 barrels of fuel oil per day, what is the maximum speed the vessel can turn for?Not learned 363. You are steaming at 19 knots and burning 440 barrels of fuel per day. You must decrease your consumption to 137 barrels per day. What must you reduce your speed to in order to burn this amount of fuel?Not learned 364. While steaming at 19.4 knots, your vessel consumes 392 barrels of fuel oil per day. In order to reduce consumption to 182 barrels of fuel oil per day, what is the maximum speed the vessel can turn for?Not learned 365. While steaming at 19.5 knots, your vessel burns 297 bbls of fuel per day. What will be the rate of fuel consumption if you decrease speed to 15 knots?Not learned 366. You are steaming at 22 knots and burning 319 barrels of fuel per day. You must decrease your consumption to 137 barrels per day. What must you reduce your speed to in order to burn this amount of fuel?Not learned 367. You are steering 154° per gyrocompass. The wind is northeast by east, causing 4° leeway. The gyro error is 3° east, variation is 11° west, and deviation is 7°E. What is the true course made good?Not learned 368. On Sunday, 8 November, your ship is enroute from Texas City, TX, to Portland, ME. At 0632 ZT, you fix your position at LAT 27°06'N, LONG 90°36'W. When the lower limb of the Sun was two-thirds of a diameter above the visible horizon, the Sun bore 105° per standard magnetic compass. At this time the chronometer read 12h 39m 20s and is 3m 20s slow. If the variation is 3°E, determine the deviation of the standard compass.Not learned 369. You swung ship and compared the magnetic compass against the gyrocompass to find deviation. Gyro error is 2°E. The variation is 8°W. Find the deviation on a gyro heading of 037°. PSC PGC 030.5° 020° 061.5° 050° 092.0° 080° 122.5° 110° 152.0° 140° 181.0° 170° 210.0° 200° 239.5° 230° 269.0° 260° 298.0° 290° 327.5° 320° 358.5° 350°Not learned 370. You swung ship and compared the magnetic compass against the gyro compass to find deviation. Gyro error is 2° E. The variation is 8° W. Find the deviation on a gyro heading of 166°. PSC PGC 030.5° 020° 061.5° 050° 092.0° 080° 122.5° 110° 152.0° 140° 181.0° 170° 210.0° 200° 239.5° 230° 269.0° 260° 298.0° 290° 327.5° 320° 358.5° 350°Not learned 371. You swung ship and compared the magnetic compass against the gyro compass to find deviation. Gyro error is 2° E. The variation is 8° W. Find the deviation on a gyro heading of 196°. PSC PGC 030.5° 020° 092.0° 080° 106.5° 050° 122.5° 110° 152.0° 140° 181.0° 170° 210.0° 200° 239.5° 230° 269.0° 260° 298.0° 290° 327.5° 320° 358.5° 350°Not learned 372. You swung ship and compared the magnetic compass against the gyrocompass to find deviation. Gyro error is 2°E. The variation is 8°W. Find the deviation on a magnetic compass heading of 234°. PSC PGC 030.5° 020° 061.5° 050° 092.0° 080° 122.5° 110° 152.0° 140° 181.0° 170° 210.0° 200° 239.5° 230° 269.0° 260° 298.0° 290° 327.5° 320° 358.5° 350°Not learned 373. You swung ship and compared the magnetic compass against the gyro compass to find deviation. Gyro error is 2° E. The variation is 8° W. Find the deviation on a magnetic compass heading of 104°. PSC PGC 030.5° 020° 061.5° 050° 092.0° 080° 122.5° 110° 152.0° 140° 181.0° 170° 210.0° 200° 239.5° 230° 269.0° 260° 298.0° 290° 327.5° 320° 358.5° 350°Not learned 374. You swung ship and compared the magnetic compass against the gyro compass to find deviation. Gyro error is 2° E. The variation is 8° W. Find the deviation on a true heading of 258°. PSC PGC 030.5° 020° 061.5° 050° 092.0° 080° 122.5° 110° 152.0° 140° 181.0° 170° 210.0° 200° 239.5° 230° 269.0° 260° 298.0° 290° 327.5° 320° 358.5° 350°Not learned 375. You swung ship and compared the magnetic compass against the gyro compass to find deviation. Gyro error is 2° W. The variation is 8° W. Find the deviation on a gyro heading of 058°. PSC PGC 030.5° 024° 061.5° 054° 092.0° 084° 122.5° 114° 152.0° 144° 181.0° 174° 210.0° 204° 239.5° 234° 269.0° 264° 298.0° 294° 327.5° 324° 358.5° 354°Not learned 376. You swung ship and compared the magnetic compass against the gyro compass to find deviation. Gyro error is 2° W. The variation is 8° W. Find the deviation on a magnetic compass heading of 210°. PSC PGC 030.5° 024° 061.5° 054° 092.0° 084° 122.5° 114° 152.0° 144° 181.0° 174° 210.0° 204° 239.5° 234° 269.0° 264° 298.0° 294° 327.5° 324° 358.5° 354°Not learned 377. You swung ship and compared the magnetic compass against the gyrocompass to find deviation. Gyro error is 2°W. The variation is 8°W. Find the deviation on a true heading of 236°. PSC PGC 030.5° 024° 061.5° 054° 092.0° 084° 122.5° 114° 152.0° 144° 181.0° 174° 210.0° 204° 239.5° 234° 269.0° 264° 298.0° 294° 327.5° 324° 358.5° 354°Not learned 378. You are taking a time tick using the 1400 signal from Buenos Aires, Argentina. You hear a 0.4 second dash followed by a series of dots, noting that the 29th and the 56th to 59th dots are omitted. At the start of the following 0.4 second dash (which is followed by an 8 second pulse), the comparing watch reads 01h 59m 57s. When compared to the chronometer, the comparing watch reads 02h 00m 38s, and the chronometer reads 02h 01m 33s. What is the chronometer error?Not learned 379. You are turning 100 RPM, with a propeller pitch of 25 feet, and an estimated slip of -5%. What is the speed of advance?Not learned 380. You are turning 105 RPM, with a propeller pitch of 17 feet, and an estimated slip of -1%. What is the speed of advance?Not learned 381. You are turning 68 RPM, with a propeller pitch of 18 feet, and an estimated slip of +2%. What is the speed of advance?Not learned 382. You are turning 78 RPM, with a propeller pitch of 21 feet, and an estimated slip of -7%. What is the speed of advance?Not learned 383. You are turning 82 RPM, with a propeller pitch of 23 feet, and an estimated slip of +6%. What is the speed of advance?Not learned 384. You are turning 84 RPM, with a propeller pitch of 22 feet, and an estimated slip of 0%. What is the speed of advance?Not learned 385. You are turning 85 RPM, with a propeller pitch of 19 feet, and an estimated slip of +3%. What is the speed of advance?Not learned 386. You are turning 88 RPM, with a propeller pitch of 19 feet, and an estimated slip of 0%. What is the speed of advance?Not learned 387. You are turning 90 RPM, with a propeller pitch of 24 feet, and an estimated slip of -3%. What is the speed of advance?Not learned 388. You are turning 93 RPM, with a propeller pitch of 25 feet, and an estimated slip of 0%. What is the speed of advance?Not learned 389. Two beacons form a range in the direction of 221.5°T. The range is seen in line from your vessel bearing 223° per gyrocompass. The variation in the area is 4°E. What is the error of your gyrocompass?Not learned 390. You are underway on course 172° T at 18.5 knots. The current is 078° T at 2.8 knots. What is the speed being made good?Not learned 391. You are underway on course 315° T at 14 knots. The current is 135° T at 1.9 knots. What is the course being made good?Not learned 392. You are underway and intend to make good a course of 170° T. You experience a current with a set and drift of 050° T at 2.8 knots, and a easterly wind produces a leeway of 3°. You adjust your course to compensate for the current and leeway, while maintaining an engine speed of 18.5 knots. What will be your speed made good over your intended course of 170° T?Not learned 393. You are underway and intend to make good a course of 350°T. You experience a current with a set and drift of 070°T at 1.5 knots, and a westerly wind produces a leeway of 4°. You adjust your course to compensate for the current and leeway, while maintaining an engine speed of 10 knots. What will be your speed made good over your intended course of 350°T?Not learned 394. What will be the velocity of the tidal current 6 miles south of Shoal Point, NY, at 1850 DST (ZD +4) on 9 July 1983?Not learned 395. Your vessel is at the approaches to Savannah, GA, with the wind coming out of the west. What will be the approximate direction of the wind-driven current?Not learned 396. Your vessel arrives in port with sufficient fuel to steam 595 miles at 14 knots. If you are unable to take on bunkers, at what speed must you proceed to reach your next port, 707 miles distant?Not learned 397. Your vessel is off Barnegat, NJ with the wind coming out of the east. What will be the approximate direction of the wind-driven current?Not learned 398. Your vessel has consumed 1087 bbls of fuel after steaming 2210 miles at a speed of 10.75 kts. What is the maximum speed you can steam for the last 1000 miles of the voyage on the remaining 725 bbls, if you estimate 3% of the fuel is not usable?Not learned 399. Your vessel consumes 156 barrels of fuel per day at a speed of 13.0 knots. What will be the fuel consumption of your vessel at 16.0 knots?Not learned 400. Your vessel consumes 178 barrels of fuel per day at a speed of 13.5 knots. What will be the fuel consumption of your vessel at 15.0 knots?Not learned 401. Your vessel consumes 199 barrels of fuel per day at a speed of 14.5 knots. What will be the fuel consumption of your vessel at 10.0 knots?Not learned 402. Your vessel consumes 215 barrels of fuel per day at a speed of 18.0 knots. What will be the fuel consumption of your vessel at 14.0 knots?Not learned 403. Your vessel consumes 216 barrels of fuel per day at a speed of 15.0 knots. What will be the fuel consumption of your vessel at 17.5 knots?Not learned 404. Your vessel consumes 236 barrels of fuel per day at a speed of 16.5 knots. What will be the fuel consumption of your vessel at 13.0 knots?Not learned 405. Your vessel consumes 268 barrels of fuel per day at a speed of 19.0 knots. What will be the fuel consumption of your vessel at 15.0 knots?Not learned 406. Your vessel consumes 274 barrels of fuel per day at a speed of 17.5 knots. What will be the fuel consumption of your vessel at 13.5 knots?Not learned 407. The vessel's course is 116°psc, the variation for the locality is 25°W and the deviation is 6°W. What is the true course made good if a northerly wind produces 1° leeway?Not learned 408. Your vessel departs Arkhangel'sk, from position LAT 64° 32' N, LONG 40° 31' E at 0236 zone time, on 19 August. It is bound for New York, at position LAT 40° 42' N, LONG 74° 01' W. The distance is determined to be 4,216 miles, and you estimate that you will average 13.0 knots. What is your estimated zone time of arrival?Not learned 409. Your vessel departs LAT 32°45'N, LONG 79°50'W, and is bound for LAT 34°21'S, LONG 18°29'E. Determine the distance by Mercator sailing.Not learned 410. Your vessel departs Montevideo, Uruguay, LAT 34° 40.3' S, LONG 54° 09.1' W (ZD +4), at 1800 zone time, on 15 October. It is bound for New York, LAT 40° 27.5' N, LONG 73° 49.9' W (ZD +5). The distance is 5,749 miles, and you expect to average 20 knots. What is your estimated zone time of arrival?Not learned 411. Your vessel departs Seattle at 1010 zone time, (ZD +8), on 28 May bound for Apra, Guam, (ZD -10). The distance by great circle is 4,948 miles, and you estimate that you will average 18.5 knots. What is your estimated zone time of arrival?Not learned 412. Your vessel departs Yokohama from position LAT 35°27.0'N, LONG 139°39.0'E (ZD -9), at 1330 ZT on 23 July, bound for Seattle at position LAT 47°36.0'N, LONG 122°22.0'W (ZD +8). The distance by great circle is 4,245 miles, and you estimate that you will average 13.6 knots. What is your estimated ZT of arrival?Not learned 413. Your vessel has a draft of 23 feet. On 23 June 1983 you wish to pass over a temporary obstruction near Beaufort, SC, that has a charted depth of 22 feet. Allowing for a safety margin of 3 feet, what is the earliest time after 1600 DST (ZD +4) that this passage can be made?Not learned 414. Your vessel has a draft of 24 feet. On 7 April 1983 you wish to pass over a temporary obstruction near Lovell Island, MA, that has a charted depth of 22 feet. Allowing for a safety margin of 3.1 feet under your keel, what is the earliest time after 0100 EST (ZD +5) that this passage can be made?Not learned 415. Your vessel is off Fire Island, NY with winds from the southwest. What will be the approximate direction of the wind-driven current?Not learned 416. A vessel at LAT 10° 22.0' S, LONG 7° 18.0' E, heads for a destination at LAT 6° 52.0' N, LONG 57° 23.0' W. Determine the true course and distance by Mercator sailing.Not learned 417. A vessel at LAT 11°22'S, LONG 009°18'E heads for a destination at LAT 06°52'N, LONG 57°23'W. Determine the true course and distance by Mercator sailing.Not learned 418. A vessel at LAT 18° 54' N, LONG 73° 00' E, heads for a destination at LAT 13° 12' N, LONG 54° 00' E. Determine the true course and distance by Mercator sailing.Not learned 419. A vessel at LAT 21° 18.5' N, LONG 157° 52.2' W, heads for a destination at LAT 8° 53.0' N, LONG 79° 31.0' W. Determine the true course and distance by Mercator sailing.Not learned 420. A vessel at LAT 21° 32' N, LONG 160° 30' W, heads for a destination at LAT 30° 00' N, LONG 150° 00' E. Determine the true course and distance by Mercator sailing.Not learned 421. A vessel at LAT 29° 38.0' N, LONG 93° 49.0' W, heads for a destination at LAT 24° 38.0' N, LONG 82° 55.2' W. Determine the true course and distance by Mercator sailing.Not learned 422. A vessel at LAT 32° 05.0' N, LONG 81° 06.0' W, heads for a destination at LAT 35° 57.0' N, LONG 5° 45.0' W. Determine the distance by Mercator sailing.Not learned 423. A vessel at LAT 32°14.7'N, LONG 66°28.9'W, heads for a destination at LAT 36°58.7'N, LONG 75°42.2'W. Determine the distance by Mercator sailing.Not learned 424. A vessel at LAT 32° 14.7' N, LONG 66° 28.9' W, heads for a destination at LAT 36° 58.7' N, LONG 75° 42.2' W. Determine the true course by Mercator sailing.Not learned 425. A vessel at LAT 33°45'N, LONG 118°30'W, heads for a destination at LAT 21°15'N, LONG 157°36'W. Determine the true course and distance by Mercator sailing.Not learned 426. A vessel at LAT 38° 03.0' S, LONG 49° 38.0' W, heads for a destination at LAT 41° 26.0' S, LONG 38° 32.0' W. Determine the true course by Mercator sailing.Not learned 427. A vessel at LAT 38°36'N, LONG 11°36'W, heads for a destination at LAT 24°16'N, LONG 71°52'W. Determine the true course and distance by Mercator sailing.Not learned 428. A vessel at LAT 40°42.0'N, LONG 74°01.0'W, heads for a destination at LAT 14°41.0'N, LONG 17°26.0'W. Determine the true course and distance by Mercator sailing.Not learned 429. A vessel at LAT 45° 36.0' N, LONG 11° 36.0' W, heads for a destination at LAT 24° 16.0' N, LONG 73° 52.0' W. Determine the true course and distance by Mercator sailing.Not learned 430. A vessel at LAT 49° 45' N, LONG 6° 35' W, heads for a destination at LAT 25° 50' N, LONG 77° 00' W. Determine the true course and distance by Mercator sailing.Not learned 431. Your vessel is proceeding up a channel, and you see a pair of range lights that are in line ahead. The chart indicates that the direction of this pair of lights is 186° T, and the variation is 11° W. If the heading of your vessel at the time of the sighting is 193° per standard magnetic compass, what is the correct deviation?Not learned 432. Your vessel is proceeding up a channel, and you see a pair of range lights that are in line ahead. The chart indicates that the direction of this pair of lights is 311°T, and the variation is 8°E. If the heading of your vessel at the time of the sighting is 305° per standard magnetic compass, what is the correct deviation?Not learned 433. Your vessel is proceeding down a channel, and you see a pair of range lights that are in line dead ahead. The chart indicates that the direction of this pair of lights is 229°T, and variation is 6°W. If the heading of your vessel at the time of the sighting is 232° per standard magnetic compass, what is the deviation?Not learned 434. Your vessel's propeller has a pitch of 22'06". From 0530, 19 March, to 1930, 20 March, the average RPM was 82. The distance run by observation was 721.5 miles. What was the slip?Not learned 435. Your vessel receives a distress call from a vessel reporting her position as LAT 35°01'S, LONG 18°51'W. Your position is LAT 30°18'S, LONG 21°42'W. Determine the true course from your vessel to the vessel in distress by Mercator sailing.Not learned 436. Your vessel receives a distress call from a vessel reporting her position at LAT 5° 24' N, LONG 31° 16' W. Your position is LAT 2° 39' S, LONG 39° 24' W. Determine the distance from your vessel to the vessel in distress by Mercator sailing.Not learned 437. Your vessel will sail from a position in LAT 8° 51.0' N, LONG 81° 31.0' W to a position at LAT 33° 51.5' S, LONG 151° 13.0' E. The distance by great circle is 7,635 miles, and you estimate an average speed of 15.0 knots. What is your estimated zone time of arrival if you depart at 1510 ZT, on 23 July?Not learned 438. A vessel steams 1082 miles on course 047° T from LAT 37° 18.0' N, LONG 24° 40.0' W. What is the latitude and longitude of the point of arrival by Mercator sailing?Not learned 439. A vessel steams 1106 miles on course 249°T from LAT 13°30.0'N, LONG 144°30.3'E. What is the latitude and longitude of the point of arrival by Mercator sailing?Not learned 440. A vessel steams 1650 miles on course 077°T from LAT 12°47'N, LONG 45°10'E. What is the latitude and longitude of the point of arrival by Mercator sailing?Not learned 441. A vessel steams 3312 miles on course 282°T from LAT 34°24'S, LONG 18°18'E. What is the latitude and longitude of the point of arrival by Mercator sailing?Not learned 442. A vessel steams 666 miles on course 135°T from LAT 40°24.0'N, LONG 74°30.0'W. What is the latitude and longitude of the point of arrival by Mercator sailing?Not learned 443. Your vessel is steering 195° per standard magnetic compass. Variation for the area is 13°W, and the deviation is 4°E. The wind is from the west-southwest, producing a 2° leeway. Which true course are you making good?Not learned 444. Your vessel is steering course 111° psc, variation for the area is 5° E, and deviation is 3° W. The wind is from the northwest, producing a 1° leeway. What true course are you making good?Not learned 445. Your vessel is steering course 243°psc. Variation for the area is 5°E, and deviation is 2°W. The wind is from the south-southeast, producing a 2° leeway. What true course are you making good?Not learned 446. Your vessel is steering course 284° psc, variation for the area is 6° W, and deviation is 3° E. The wind is from the north-northeast, producing a 3° leeway. What true course are you making good?Not learned 447. You are on a voyage from Baltimore, MD to Seattle, WA. The distance from pilot to pilot is 5960 miles. The speed of advance is 16.0 knots. You estimate 16 hours for bunkering at Colon, and 12.0 hours for the Panama Canal transit. If you take departure at 0824 hours (ZD +5), 18 November, what is your ETA (ZD +8) at Seattle?Not learned 448. You are on a voyage from Belem, Brazil to Mobile, AL. The distance from departure to arrival is 3150 miles. The speed of advance is 14.0 knots. You estimate a layover in San Juan, Puerto Rico, of 17.5 hours. If you took departure at 2200 (ZD +3h 30m), 26 February, what was your ETA (ZD +6) at Mobile?Not learned 449. You are on a voyage from Boston, MA to the South Pass, LA. The distance is 1870 miles, and the speed of advance is 13.6 knots. You estimate 16.5 hours for bunkering enroute at Port Everglades, FL. If you sailed at 0836 hours (ZD +5), 26 February, what was your ETA (ZD +6) at the South Pass?Not learned 450. You are on a voyage from Corpus Christi, TX to Fort de France, Martinique. The distance from pilot to pilot is 2190 miles (2521 statute miles). The speed of advance is 15.0 knots. You estimate a layover in Charlotte Amalie, Virgin Islands, of 16.0 hours. If you take departure at 0654 (ZD +6), 27 November, what is your ETA (ZD +4) at Fort de France?Not learned 451. You are on a voyage from Halifax, Nova Scotia to Galveston, TX. The distance is 2138 miles, and the speed of advance is 12.5 knots. You estimate 18.0 hours for bunkering enroute at Port Everglades, FL. If you sail at 0648 hours (ZD +4), 12 June, what is your ETA (ZD +5) at Galveston?Not learned 452. You are on a voyage from Limoy, Costa Rica to Los Angeles, CA. The distance from departure to arrival is 3150 miles. The speed of advance is 14.0 knots. You estimate 24.0 hours for bunkering at Colon, and 12.0 hours for the Panama Canal transit. If you take departure at 1836 hours (ZD +6), 28 January, what is your ETA (ZD +8) at Los Angeles?Not learned 453. You are on a voyage from New York, NY, to San Francisco, CA. The distance from pilot to pilot is 5132 miles. The speed of advance is 13.5 knots. You estimate 32 hours for bunkering at Colon, and 14 hours for the Panama Canal transit. If you take departure at 0600 hours (ZD +4), 16 May, what is your ETA (ZD +7) at San Francisco?Not learned 454. You are on a voyage from San Diego, CA to New York, NY. The distance from pilot to pilot is 4860 miles. The speed of advance is 15.0 knots. You estimate 18 hours for bunkering at Colon, and 14 hours for the Panama Canal transit. If you take departure at 0836 hours (ZD +7), 4 July, what is your ETA (ZD +4) at New York?Not learned 455. You are on a voyage from St. John, Canada to Galveston, TX. The distance is 2280 miles, and the speed of advance is 15.0 knots. You estimate 16.5 hours for bunkering enroute at Ft. Lauderdale, FL. If you sailed at 1642 hours (ZD +4), 27 February, what was your ETA (ZD +6) at Galveston?Not learned 456. You are on a voyage from Valdez, AK, to the Panama Canal. The distance from pilot to pilot is 4950 miles. The speed of advance is 15.0 knots. You estimate a layover in San Francisco, CA, of 36.0 hours. If you take departure at 0800 (ZD +10), 29 October, what is your ETA (ZD +5) at the Panama Canal?Not learned 457. You want to make good a true course of 137°. A north-northeast wind produces a 3° leeway. The variation is 11° west, deviation is 5° east, and gyrocompass error is 2° east. What course must you steer per gyrocompass to make the true course good?Not learned 458. You want to transit Hell Gate, NY on 23 July 1983. What is the period of time around the AM (ZD +4) slack before ebb when the current will be less than 0.3 knot?Not learned 459. The wind at Frying Pan shoals has been north-northeasterly at an average velocity of 30 mph. The predicted set and drift of the rotary current are 355° at 0.8 knot. What current should you expect?Not learned 460. The wind at Frying Pan shoals has been northwesterly at an average velocity of 22 mph. The predicted set and drift of the rotary current are 125° at 0.6 knot. What current should you expect?Not learned 461. The wind at Frying Pan shoals has been south-southwesterly at an average velocity of 30 mph. The predicted set and drift of the rotary current are 232° at 0.8 knot. What current should you expect?Not learned 462. The wind at Frying Pan shoals has been west-northwesterly at an average velocity of 40 mph. The predicted set and drift of the rotary current are 323° at 0.6 knot. What current should you expect?Not learned 463. The wind in the vicinity of Nantucket Shoals Light has been southerly at an average speed of 23 mph. The predicted set and drift of the rotary current is 225° at 0.8 knot. What current should you expect?Not learned 464. You wish to make good a course of 230°T while turning for an engine speed of 12.5 knots. The set is 180°T, and the drift is 1.7 knots. What speed will you make good along the track line?Not learned 465. What would be the height of the tide at Crisfield, MD, at 0310 DST (ZD +4) on 6 May 1983?Not learned 466. On 4 October your 1907 zone time DR position is LAT 25°15.0'S, LONG 105°44.0'E. At that time, you observe Deneb bearing 011.5°psc. The chronometer reads 00h 07m 42s, and the chronometer error is 00m 36s fast. The variation is 7.5°W. What is the deviation of the standard compass?Not learned 467. On 10 November 2023 at 0130, you are inbound at Charleston Harbor Entrance Buoy “10” (ACT6611). What is the direction and velocity of the current you are encountering as you pass Buoy “10”Not learned 468. On 2 October 2023, you will be docking at the Dundalk Marine terminals in Baltimore, MD at the first high tide. The berth is located between NOAA reference tidal station #8574680 and subordinate station #8574821. What time (LST) will you be dockingNot learned 469. On 4 October 2023, you will be docking at the Redwood Marine Terminal in Eureka, CA at the first low tide. The berth is located between NOAA reference tidal station #9418767 and subordinate station #9418801. What time (LST) will you be dockingNot learned 470. On 9 November 2023 at 1130, you are inbound at Charleston Harbor Entrance Buoy “10” (ACT6611). Your vessel will transit 15nm and make good 10.0 knots to a berth where the nearest tidal current station is ACT6706. What will be the direction and velocity of the current as you approach the dockNot learned