Q372 - Navigation Problems: Chart Plot, USCG prep certification 2026

Progress: 24% (23/94)

Learning progress ?

1. The Light List shows that a navigational light has a nominal range of 15 miles and a height above water of 29 feet (8.8 meters). Your height of eye is 52 feet (15.8 meters) and visibility is 6.0 miles. At which approximate range will you first sight the light?Not learned 2. 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 3. 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 4. Visibility is exceptionally clear. At approximately what distance did Chesapeake Light become visible?Not learned 5. 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 6. 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 7. At what time will you enter the inbound traffic lane with Buoy "NCA" (LL #375) bearing 180°T at 0.3 mile?Not learned 8. 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 9. 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 10. 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 11. What is the approximate geographic range of Assateague Light, VA, if your height of eye is 52 feet (15.8 meters)? Refer to "Reprints from the LIGHT LISTS AND COAST PILOTS".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. What is the approximate geographic range of Assateague Light, VA, if your height of eye is 52 feet (15.8 meters)? Refer to "Reprints from the LIGHT LISTS AND COAST PILOTS".Not learned 22. 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 23. 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 24. You should expect to pass how far off buoy "12"?Not learned 25. 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 26. 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 27. 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 28. What is your course made good from 2045 to 2111?Not learned 29. If you are going to head directly for Chesapeake Light from your 2111 fix, what is the course to make good?Not learned 30. 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 31. The nominal range of a light may be accurately defined as the maximum distance at which a light may be seen __________.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 luminous range of a light takes into account which factor?Not learned 42. The following questions should be answered using Chart 12354TR, Long Island Sound - Eastern Part, and the supporting publications. You are turning for 12.7 knots. Your vessel's deep draft is 16 feet. Gyro error is 2°W. Use 14°W for variation where required. DEVIATION TABLE Magnetic Heading Deviation 045° 3.0°E 060° 3.0°E 075° 1.5°E 090° 0.5°W At 2127 you take the following round of bearings: Old Field Point Light 224.0°pgc Middle Ground Light 320.5°pgc Stratford Point Light 348.0°pgc Based on the above fix, which statement is TRUE?Not learned 43. At 2127 you are on course 076°T. What is your ETA at a position where Twenty Eight Foot Shoal Lighted Bell Buoy "TE" is abeam to port?Not learned 44. At 2200 Middle Ground Light is bearing 270°T at 9 nm. Which statement is TRUE?Not learned 45. You alter course to make good 076°T from your 2200 fix, and estimate you will make 13.6 knots over the ground. If the visibility is 5.5 miles, what is the earliest time you will sight Falkner Island Light? (nominal range 13 miles)Not learned 46. At 2214 you receive a "Securite" call requesting you to remain at least 2 miles away from underwater work taking place at LAT 41°07.8'N, LONG 72°34.6'W. If you change course at 2220 and allow 3° leeway for southerly winds which course will you steer per gyrocompass to comply with this request? No allowance made for current.Not learned 47. At 2236 Falkner Island Light bears 024°T at a range of 8.6 nm. What was the speed made good along the track line since your 2200 fix?Not learned 48. At 2310 your position is LAT 41°05.5'N, LONG 72°33.7'W and you change course to make good 068°T. A radar speed check using Twenty Eight Foot Shoal Buoy indicates your speed over the ground is 13.6 knots. At 2325 Horton Point Light bears 129°T. At 2341 the same light bears 194°T. What is the position of your 2341 running fix?Not learned 49. At 2342 the gyro alarm sounds and you commence steering by standard magnetic compass. If you allow 3° leeway for southerly winds and do not correct for any existing current, what is the course to steer by standard magnetic compass to make good 068°T?Not learned 50. At 2350 the gyro is restored to service. At 0016 the visibility improves. At 0028 you sight Bartlett Reef Light in line with New London Harbor Light bearing 039°pgc. What is the gyro error?Not learned 51. The Light List indicates that a light has a nominal range of 14 miles and is 26 feet high. If the visibility is 14 miles and your height of eye is 20 feet, at which approximate distance will you sight the light?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 (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 62. The following questions are to be answered using Chart 13205 TR, Block Island Sound, and supporting publications. There are fog patches. You are turning for 12.1 knots. Your draft is 22 feet. The gyro error is 3°W. DEVIATION TABLE Magnetic Heading Deviation 180° 2.5°E 195° 2.0°E 210° 1.0°E 225° 0.5°W At 2009 you are leaving New London Harbor with buoy "2" close abeam to port, Bartlett Reef Light is at a range of 2.9 nm. What is the true course to the Race that will leave Race Rock Light 0.8 mile abeam to port?Not learned 63. At 2016 you sight N. Dumpling Light in line with Latimer Reef Light (Fl 6 sec, 55 ft) bearing 079°pgc. At the time of the bearing the helmsman reported he was steering 164° pgc and 172° per standard magnetic compass. What is the deviation for that heading?Not learned 64. At which point in the voyage is your vessel bound by the International Rules of the Roads (COLREGS)?Not learned 65. You will pass through the Race at approximately the time of maximum ebb current. As you APPROACH the Race from New London, how will your vessel be set?Not learned 66. At 2030 you take the following radar ranges: Race Rock Light 2.1 miles Latimer Reef Light 6.4 miles If you estimate an average current of 080°T at 1.5 knots, which course will you steer per gyrocompass to leave Endeavor Shoals Gong Buoy bearing 270°T at 1.5 miles?Not learned 67. The light on Block Island Sound South Entrance Obstruction Buoy "BIS" is reported extinguished. Which of the following will serve as a positive warning that you are being set onto the obstruction?Not learned 68. At 2103 you take the following set of bearings: Watch Hill Point Light bears 005° true Montauk Point Light bears 170° true Determine your 2103 fix.Not learned 69. You round Montauk Point and steer to make good 206°T. Speed is increased to 13.0 knots. The current, if any, is unknown. The visibility has improved and is estimated to be 5 miles. At 2144 Montauk Point Light bears 273°T. At 2202 the same light bears 320°T. Which statement concerning your 2202 running fix is TRUE?Not learned 70. At 2229 the gyro fails. What is the course to steer per standard magnetic compass to make good 206°T, if you allow 3° leeway for southeasterly winds?Not learned