Q107 - Navigation Problems: Chart Plot, USCG prep certification 2026

Progress: 24% (23/94)

Learning progress ?

1. The Light List indicates that a light has a nominal range of 20 miles and is 52 feet (16 meters) high. If the visibility is 20 miles and your height of eye is 20 feet (6 meters), at what approximate distance will you sight the light?Not learned 2. The following questions are to be answered using chart 12221 TR, Chesapeake Bay Entrance, and supporting publications. Your vessel is enroute from New York, NY, to Baltimore, MD. Your vessel's draft is 29 feet, and your height of eye is 54 feet. Your present course is 206°T and your speed is 18 knots. Use 10°W variation where required. At 0705 your position is Latitude 37°20.8' N Longitude 75°29.9' W. If a northwesterly breeze is causing 3 degrees leeway what is the true course to steer in order to pass Hog Island Lighted Bell Buoy "12" at a distance abeam of two miles?Not learned 3. At 0725 you determined your vessel's position to be 37°15.5'N, 75°33.2'W. Assuming that you make good your course of 206°T and a speed of 18 knots, at what time would you expect to be abeam of Cape Charles Lighted Bell Buoy "14"?Not learned 4. (5.8.2.2B1-3) At about what time will you see Chesapeake Light if visibility is exceptionally clear?Not learned 5. At 0741 you are still steering a course of 206° true, with a speed of 18 knots. At this time you observe Cape Charles Lighted Bell Buoy "14" bearing 222°T and Hog Island Lighted Bell Buoy "12" bearing 015°T. What were the set and drift experienced since 0725?Not learned 6. From your 0741 position, you wish to change course in order to pass 2.2 miles easterly of Cape Charles Lighted Bell Buoy "14". Your engine speed is now 14.0 knots. You estimate the current to be 240°T at 1.8 knots. What is the true course to steer to make good the desired course?Not learned 7. At 0811 your vessel's position is 37°04.9'N, 75°39.7'W. You are steering a course of 220°T at a speed of 14.0 knots. At what time would you expect the buoys in the northeasterly traffic scheme to line up, if you do not correct for a southwesterly current of 1.8 knots?Not learned 8. At 0841 Chesapeake Light bears 164°T, Cape Charles Light bears 312°T, and Cape Henry Light bears 247°T. What was your course made good since 0811?Not learned 9. From your 0841 position, you are steering a course of 241°T to the northeasterly inbound channel entrance, your speed is now 15 knots. What is your ETA abeam of buoy "NCA" (LL#375)?Not learned 10. As you pass through the Chesapeake Bay Bridge and Tunnel, you take a bearing of 047°pgc along trestle C when it is in line. The helmsman reports the vessel's heading as 316° pgc and 329°psc. What is the deviation on that heading?Not learned 11. Geographic range is the maximum distance at which a light may be seen under which conditions?Not learned 12. The following questions are to be answered using Chart 12221TR, Chesapeake Bay Entrance, and supporting publications. You are southbound along the coast on a course of 180°T and the engine speed is 14 knots. Your draft is 16 feet. Gyro error is 2°W. Use 10°W variation where required At 2000 Hog Island Lighted Bell Buoy "12" bears 199°T and Buoy "GM" bears 249°T. What is your position?Not learned 13. From your 2000 position you change course to 206°T. What time would you expect to be abeam of Hog Island Buoy "12"?Not learned 14. You should expect to pass how far off buoy "12"?Not learned 15. At 2030 you take the following bearings: Sand Shoal Inlet South Light: 275°T Cape Charles Light: 235°T What is the set and drift from 2000 to 2030?Not learned 16. From your 2030 fix you change course to 195°T, and leave the engine speed at 14 knots. At 2045, your position is Lat 37°13.50'N Long 075°38.05'W Which statement is TRUE?Not learned 17. You continue to steer 195°T. You pass Cape Charles Lighted Bell Buoy "14", 0.9 miles abeam to starboard at 2111. What is your speed made good from 2045 to 2111?Not learned 18. What is your course made good from 2045 to 2111?Not learned 19. If you are going to head directly for Chesapeake Light from your 2111 fix, what is the course to make good?Not learned 20. At 2200, you alter course to 204°T, at 14 knots. You expect a current on this leg of the trip, setting 325° at 1.5 knots. Which course should you steer per gyrocompass to make good the true course?Not learned 21. The Light List indicates that a light has a nominal range of 14 miles and is 42 feet (12.7 m) high. If the visibility is 16 miles and your height of eye is 20 feet (6.1 m), at which approximate distance will you sight the light?Not learned 22. The following questions are based on Chart 12221TR, Chesapeake Bay Entrance, and the supporting publications. Your present course is 202°T and your vessel's engines are turning RPMs for 18 knots. Your height of eye is 54 feet (16.5 meters) and your vessel's draft is 28 feet (8.5 meters). Use 10°W variation where required. At 0800 your position is LAT 37°21.0'N, LONG 75°32.0'W. Assuming that there is no set and drift, what time would your vessel cross the 60-foot curve?Not learned 23. At 0800 you reduce speed from sea speed. Speed was reduced by the time you passed abeam of Hog Island Lighted Bell Buoy "12" at 0814. At this time Buoy "12" was abeam on your starboard side at a distance of 0.65 mile. Assuming you continue to make good your course of 202°T, what is your new speed if you pass abeam of Cape Charles Lighted Bell Buoy "14" at a distance of 1.5 miles at 0907?Not learned 24. Visibility is exceptionally clear. At approximately what distance did Chesapeake Light become visible?Not learned 25. At 0907 you change course to 224°T, and your speed is now 13.0 knots. At 0939 Chesapeake Light is bearing 168°T at a distance of 7.1 miles, and Cape Henry Light is bearing 246°T. What were the set and drift since 0907?Not learned 26. From your 0939 position, you wish to change course in order to pass 0.3 mile north of Buoy "NCA" (LL#375) in the inbound traffic lane. You estimate the current to be 150°T at 2.0 knots. What course should you steer to make good the desired course? Your speed is still 13.0 knots.Not learned 27. At what time will you enter the inbound traffic lane with Buoy "NCA" (LL #375) bearing 180°T at 0.3 mile?Not learned 28. At 1010 your vessel passes close abeam to Buoy "NCB" in the inbound traffic lane. At this time the Chesapeake Bay Pilot informs you that he will not board your vessel until 1100. The pilot boat is located 1.5 miles northeast of Cape Henry Light. What should you reduce your speed to in order to arrive at the pilot boat at this time?Not learned 29. After the pilot boards, he tells you the gyro has a 2°E error. If this is true, what should the bearing be along Trestle C of the Chesapeake Bay Bridge-Tunnel as your vessel passes abeam of it?Not learned 30. Your vessel's heading is 330°pgc and 345°psc with a 2°E gyro error. What is the deviation on this heading?Not learned 31. The Light List indicates that a light has a nominal range of 10 miles and is 11 feet high. If the visibility is 5 miles and your height of eye is 20 feet, at what approximate distance will you sight the light?Not learned 32. The following questions are to be answered using Chart 12221TR, Chesapeake Bay Entrance, and supporting publications. You are southbound along the coast on a course of 180°T and the engine speed is 14 knots. Your draft is 16 feet. Gyro error is 2°W. Use 10°W variation where required At 2000 Hog Island Lighted Bell Buoy "12" bears 199°T and Buoy "GM" bears 249°T. What is your position?Not learned 33. From your 2000 position you change course to 206°T. What time would you expect to be abeam of Hog Island Buoy "12"?Not learned 34. You should expect to pass how far off buoy "12"?Not learned 35. At 2030 you take the following bearings: Sand Shoal Inlet South Light: 275°T Cape Charles Light: 235°T What is the set and drift from 2000 to 2030?Not learned 36. From your 2030 fix you change course to 195°T, and leave the engine speed at 14 knots. At 2045, your position is Lat 37°13.50'N Long 075°38.05'W Which statement is TRUE?Not learned 37. You continue to steer 195°T. You pass Cape Charles Lighted Bell Buoy "14", 0.9 miles abeam to starboard at 2111. What is your speed made good from 2045 to 2111?Not learned 38. What is your course made good from 2045 to 2111?Not learned 39. If you are going to head directly for Chesapeake Light from your 2111 fix, what is the course to make good?Not learned 40. At 2200, you alter course to 204°T, at 14 knots. You expect a current on this leg of the trip, setting 325° at 1.5 knots. Which course should you steer per gyrocompass to make good the true course?Not learned 41. The Light List indicates that a light has a nominal range of 20 miles and is 52 feet high. If the visibility is 12.0 miles and your height of eye is 20 feet, at what approximate distance will you sight the light?Not learned 42. The following questions should be answered using Chart 12354TR, Long Island Sound - Eastern Part, and the supporting publications. You are on a coastwise voyage from Bridgeport, Conn., to Boston, Mass. You intend to divert to a position off New Haven, Conn., to evacuate an injured crew member. Your height of eye is 53 feet and your vessel's deep draft is 34 feet. Gyro error is 2°W. Use 14°W variation where required. At 0820 Old Field Point Light bears 206° per gyrocompass, and Stratford Shoals Middle Ground Light bears 322° per gyrocompass. The radar range to Middle Ground Light is 1.5 miles. What is your 0820 position?Not learned 43. From your 0820 position you change course to your rendezvous position, one mile due south of buoy "NH", speed 14.5 knots. You estimate the current to be 260°T at 0.5 knot. The wind is northwesterly at 20 knots and you estimate 2° leeway. What is your course per gyrocompass (pgc) to the rendezvous position, if you correct your heading for current and leeway?Not learned 44. At 0847 you take a round of bearings as follows: Middle Ground Shoal Light 237°pgc Stratford Point Light 289°pgc New Haven Light 019°pgc What were the set and drift since your 0820 position?Not learned 45. From your 0847 fix, you change course to arrive at the rendezvous position and, correcting for current, you estimate your speed over the ground at 15 knots. What is your ETA at the rendezvous?Not learned 46. At 1022 when you complete the evacuation, you get underway on course 098°T and order turns for 14.5 knots. You take the following round of bearings at that time: Stratford Point Light 260° per gyrocompass New Haven Light 326° per gyrocompass SW Ledge Light 358°Not learned 47. As you cross the New Haven Outer Channel range, you observe the range in line bearing 335.5° per gyrocompass. The helmsman reports that he was heading 100° per gyrocompass, and that the standard magnetic compass read 109° at the time of the observation. What are the gyro error and deviation of the standard magnetic compass on this heading?Not learned 48. At 1038 Branford Reef Light bears 019°pgc, Falkner Island Light bears 075°pgc, and the radar range to Branford Reef Light is 3.0 miles. Which statement is TRUE of your 1038 position?Not learned 49. Which of the following describes the north shore of Long Island, from Horton Point to Orient Point?Not learned 50. The visibility is excellent. When Race Rock Light Tower breaks the horizon, how far will you be from the Tower?Not learned 51. Determine the approximate geographic visibility of an object, with a height above the water of 85 feet (25.9 meters), for an observer with a height of eye of 60 feet (18.3 meters).Not learned 52. The following questions are to be answered using Chart 12354TR, Long Island Sound - Eastern Part, and supporting publications. Your vessel is enroute to New Haven, CT. You are proceeding at a reduced speed of 9.8 knots on a course of 243°T. Your height of eye is 45 feet and your vessel's deep draft is 33 feet. At 0930 you obtain a position from the following information: Race Rock Light bears 110°T at a range of 1.4 miles, and Goshen Point bears 330°T at a range of 3.3 miles. What are your present latitude and longitude?Not learned 53. At 1000 buoy "PI" is abeam to starboard a distance of 0.5 mile. From this position, with a set of 295° and a drift of 1.6 knots, what course must you steer to arrive at a point with Buoy "TE" one mile abeam to starboard?Not learned 54. At 1130, Horton Point Light bears 172°T at a range of 3.45nm. The fathometer reads 81 ft. Which of the following describes your position?Not learned 55. At 1155 your vessel's position is LAT 41°09.0'N, LONG 72°34.4'W. If you make good a course of 282°T and a speed of 10.0 knots, when will you arrive at New Haven Harbor Lighted Whistle Buoy "NH"?Not learned 56. From your 1155 position, you steer a course of 282°T at a speed of 9.5 knots. You obtain the following bearings: 1205: Falkner Island Light: 318°T 1225: Falkner Island Light: 355°T Which of the following describes your 1225 running fix?Not learned 57. At 1245 the GPS shows your position to be LAT 41°10.3'N, LONG 72°44.2'W. You are steering a course of 284°T at an engine speed of 13.0 knots. At what time would you expect the New Haven Harbor Outer Range to be in line if you have a current setting 112°T at 1.2 knots?Not learned 58. At the time of your 1245 position, which statement is TRUE?Not learned 59. After departing the New Haven terminals, your 1800 position puts the New Haven Harbor Lighted Whistle Buoy "NH" bearing 130°T at a range of 0.2 mile. From this position you set a course to leave Stratford Shoal Middle Ground Light 1.0 mile off your starboard beam. Your speed is 12.5 knots. At 1845 you determine your position to be LAT 41°05.5'N, LONG 73°03.1'W. What were the set and drift of the current?Not learned 60. From your 1845 position, you desire to leave Stratford Shoal Middle Ground Light 1.0 mile off your starboard beam at 1900. Which course and speed would you order if you allow for a 2.0 knot current with a set of 180°T?Not learned 61. The Light List indicates that a light has a nominal range of 14 miles and is 42 feet high (12.8 meters). If the visibility is 6 miles and your height of eye is 20 feet (6.1 meters), at what approximate distance will you sight the light?Not learned 62. The following questions are to be answered using Chart 13205 TR, Block Island Sound, and supporting publications. Your height of eye is 42 feet and your vessel's draft is 34 feet. The gyro error is 2°E. You are keeping daylight savings time (ZT+4). Use 15°W variation where required. DEVIATION TABLE Magnetic Heading Deviation 030° 3°W 060° 4°W 090° 3°W 120° 2°W 150° 0° 180° 1°E 210° 2°E 240° 3°E 270° 2°E 300° 1°E 330° 1°W 360° 3°W At 0400 your position is: Latitude 40° 50.2' North Longitude 071° 36.2' West From your 0400 fix, you steer a course to make good 347°T at 12.5 knots. Visibility is good. What is the earliest time you can expect to raise Montauk Point Light? (Nominal range - 24 miles, height above water - 168 feet)Not learned 63. You estimate the current to be 125° at 0.6 knot, and the wind is westerly causing 3° of leeway. What course should you steer per gyrocompass to make good 347°T while turning for 12.5 knots?Not learned 64. At 0445 you take the following lines bearings: Montauk Point Light 292°pgc Block Island Southeast Point Light 024°pgc What was the current encountered since your 0400 fix?Not learned 65. At 0455 you encounter fog and slow to 5 knots. At 0500, you obtain a radar fix from the following information: Radar range to Montauk Point is 9.1 miles. Tangent bearing to western edge of Block Is. Is 015°pgc. Distance off the nearest part of Block Is. is 5.9 miles. What is your 0500 position?Not learned 66. Based on your 0500 fix, which statement is TRUE?Not learned 67. At 0520 your position is LAT 41°07.2'N, LONG 71°41.6'W. You set course to leave Race Rock Light abeam to starboard at 0.5 mile. What is the course to steer per standard magnetic compass? (Assume no current)Not learned 68. Visibility becomes variable in patchy fog and you maintain 5 knots speed. At 0610 you sight Montauk Point Light bearing 239°pgc. At 0630 you sight Watch Hill Point Light bearing 333°pgc. What is the position of your 0630 running fix?Not learned 69. At 0630 you increase speed to 12.0 knots. At 0645 Race Rock Light bears 294°pgc. At 0700 Race Rock Light bears 293°pgc. Based on this, what action should you take?Not learned 70. The Tidal Current Tables indicate the following for the Race: Slack Max 0328 Slack 0642 3.9F 0947 Slack 1301 3.2E What current should you expect when transiting the Race?Not learned 71. The Light List indicates that a light has a nominal range of 14 miles and is 42 feet high (12.8 meters). If the visibility is 6 miles and your height of eye is 20 feet (6.1 meters), at what approximate distance will you sight the light?Not learned 72. The following questions are to be answered using Chart 13205 TR, Block Island Sound, and supporting publications. Your height of eye is 42 feet and your vessel's draft is 34 feet. The gyro error is 2°E. You are keeping daylight savings time (ZT+4). Use 15°W variation where required. DEVIATION TABLE Magnetic Heading Deviation 030° 3°W 060° 4°W 090° 3°W 120° 2°W 150° 0° 180° 1°E 210° 2°E 240° 3°E 270° 2°E 300° 1°E 330° 1°W 360° 3°W At 0400 your position is: Latitude 40° 50.2' North Longitude 071° 36.2' West From your 0400 fix, you steer a course to make good 347°T at 12.5 knots. Visibility is good. What is the earliest time you can expect to raise Montauk Point Light? (Nominal range - 24 miles, height above water - 168 feet)Not learned 73. You estimate the current to be 125° at 0.6 knot, and the wind is westerly causing 3° of leeway. What course should you steer per gyrocompass to make good 347°T while turning for 12.5 knots?Not learned 74. At 0445 you take the following lines bearings: Montauk Point Light 292°pgc Block Island Southeast Point Light 024°pgc What was the current encountered since your 0400 fix?Not learned 75. At 0455 you encounter fog and slow to 5 knots. At 0500, you obtain a radar fix from the following information: Radar range to Montauk Point is 9.1 miles. Tangent bearing to western edge of Block Is. Is 015°pgc. Distance off the nearest part of Block Is. is 5.9 miles. What is your 0500 position?Not learned 76. Based on your 0500 fix, which statement is TRUE?Not learned 77. At 0520 your position is LAT 41°07.2'N, LONG 71°41.6'W. You set course to leave Race Rock Light abeam to starboard at 0.5 mile. What is the course to steer per standard magnetic compass? (Assume no current)Not learned 78. Visibility becomes variable in patchy fog and you maintain 5 knots speed. At 0610 you sight Montauk Point Light bearing 239°pgc. At 0630 you sight Watch Hill Point Light bearing 333°pgc. What is the position of your 0630 running fix?Not learned 79. At 0630 you increase speed to 12.0 knots. At 0645 Race Rock Light bears 294°pgc. At 0700 Race Rock Light bears 293°pgc. Based on this, what action should you take?Not learned 80. The Tidal Current Tables indicate the following for the Race: Slack Max 0328 Slack 0642 3.9F 0947 Slack 1301 3.2E What current should you expect when transiting the Race?Not learned