Q306 - Great Lakes Topics, USCG prep certification 2026

Progress: 24% (23/94)

Learning progress ?

1. Which is usually the most gentle way of riding out a severe storm on a larger vessel?Not learned 2. Which action reduces the yawing of a vessel in a following sea?Not learned 3. Advection fog holds longest over which portions of the lakes?Not learned 4. How are aids to navigation on the Great Lakes arranged geographically?Not learned 5. Assume that your vessel has just entered Lake Erie by way of the Welland Canal and is proceeding in a southwesterly direction. Which statement about the aids to navigation you can expect to encounter along the route is TRUE?Not learned 6. Assuming that the recommended hatch loading sequence is followed, how many long tons of iron ore may be loaded through hatch No. 1 while using a single belt loader to arrive at a desired mean keel draft of 29'-11"? (use the Guidance Manual for Loading M.V. GRAND HAVEN)Not learned 7. Assuming that the recommended hatch loading sequence is followed, how many long tons of iron ore may be loaded through hatch No. 20 while using a single belt loader to arrive at a desired mean keel draft of 29'-06"? (Use the Guidance Manual for Loading M.V. GRAND HAVEN.)Not learned 8. Assuming that the recommended hatch loading sequence is followed, how many long tons of iron ore may be loaded through hatch No. 3 while using a single belt loader to arrive at a desired mean keel draft of 27'-07"? (Use the Guidance Manual for Loading M.V. GRAND HAVEN.)Not learned 9. Which basic category of water level fluctuations on the Great Lakes is the most regular?Not learned 10. What is NOT a basic shiphandling rule for navigating in ice concentrations on the Great Lakes?Not learned 11. There are basically three categories of water level fluctuations on the Great Lakes. What is NOT included as one of these?Not learned 12. A channel is stated as having a controlling depth of 38 feet. Which statement is TRUE?Not learned 13. Which defines the pitch of a propeller on a merchant vessel?Not learned 14. Which describes ice blink?Not learned 15. When is the effect of wind on exposed areas of the vessel most noticeable?Not learned 16. In a following sea, a wave has overtaken your vessel and thrown the stern to starboard. To continue along your original course, which action should you take?Not learned 17. Which term describes the force exerted by a propeller which tends to throw the stern right or left?Not learned 18. Which of the Great Lakes generally has the shortest navigation season?Not learned 19. On the Great Lakes, which defines the term "controlling depth"?Not learned 20. You are heading into the sea during rough weather. What may happen if there is too much weight forward in your small boat?Not learned 21. Ice concentration is measured in tenths. What concentration range of ice corresponds to "Close Pack"?Not learned 22. Ice concentration is measured in tenths. What concentration range of ice corresponds to "Open Pack"?Not learned 23. You are on an ice-reinforced vessel about to enter pack ice. Which action should you take?Not learned 24. An icebreaker assisting a vessel through an ice field displays a visual signal consisting of the code letter "S" (Sierra). What does this signal indicate?Not learned 25. An icebreaker may use the code letter "K" to remind ships of their obligation to listen continuously on their radio. How can this signal be communicated to other vessels?Not learned 26. What is NOT an indication that pack ice may be nearby?Not learned 27. What does the line labeled "MS" indicate on the Great Lakes load line model shown in illustration D031DG below?Not learned 28. The maneuvering information required to be posted in the wheelhouse must be based on certain conditions. Which of the following is NOT one of these conditions?Not learned 29. What is the meaning of a flag hoist consisting of the code letters "WM" (Whiskey Mike) when displayed by an icebreaker?Not learned 30. Which expresses the term leeway?Not learned 31. If your propeller is racing in rough weather, which action should you take?Not learned 32. As the propeller turns, voids are formed on the trailing and leading edges of the propeller blades causing a loss of propulsive efficiency, pitting of the blades, and vibration. Which term defines this effect?Not learned 33. As a rule, ships of most configurations, when drifting in calm water with negligible current, will lie in which orientation?Not learned 34. When running before a heavy sea, what will moving weights aft on the vessel accomplish?Not learned 35. If a tug equipped with flanking rudders is to be turned in a confined circle, when going astern, which is the best action to take to make the stern move to port?Not learned 36. A U.S. Coast Guard icebreaker, while escorting ships in ice, has sounded four short and one long blasts on the whistle. What does this indicate?Not learned 37. You are underway in heavy weather and your bow is into the seas. Which action should you take to prevent pounding?Not learned 38. Your vessel is broken down and rolling in heavy seas. How can you reduce the danger of capsizing?Not learned 39. Why is a VLCC (100,000 DWT+) with a 30,000 Shaft Horsepower Steam Turbine slow to respond to engine movements, and has less stopping power than normal ships?Not learned 40. Which describes nearly half of all storms that enter the Great Lakes Basin during the period from October through May?Not learned 41. When the period of beam seas equals the natural rolling period of a vessel, what will most likely occur?Not learned 42. Which publication offers information on Great Lakes ice services?Not learned 43. Which publication would give detailed information on the commercial vessel traffic reporting system for connecting waters from Lake Erie to Lake Huron?Not learned 44. Which single-letter signal, when used by icebreakers on the Great Lakes, may be made by using the ship's whistle?Not learned 45. In which situation could a vessel most easily capsize?Not learned 46. Small floes of rough, hummocky sea ice are capable of damaging a vessel. Which statement is TRUE?Not learned 47. Which statement is FALSE with regard to the Great Lakes Light List?Not learned 48. Which statement about stopping a vessel is TRUE?Not learned 49. Which statement is TRUE concerning weather conditions on the Great Lakes?Not learned 50. Which statement is TRUE with respect to the load line markings shown in illustration D031DG below?Not learned 51. Storms that enter the Great Lakes Basin from the west and northwest at a peak in October are the products of which pressure system?Not learned 52. When turning a ship in restricted space with a strong wind, which is the BEST action to take?Not learned 53. Which type of fog is the most dense and widely spread of those that occur on the Great Lakes?Not learned 54. Which type of ice is a hazard to navigation?Not learned 55. Using the Guidance Manual for Loading the M.V. Grand Haven, determine the amount of ballast required in tank No. 3 (P & S) to maintain drafts of 17'-00" forward and 22'-06" aft for a vessel loaded with grain which has a test weight of 34 lbs.Not learned 56. Using the Guidance Manual for Loading M.V. Grand Haven, determine the amount of ballast required in tank No. 3 (P & S) to maintain drafts of 17'-00" forward and 22'-06" aft for a vessel loaded with grain which has a test weight of 37.6 lbs.Not learned 57. Using sheet 25 in the Guidance Manual for Loading M.V. Grand Haven, determine the amount of ballast required in tank No. 5 (P & S) to maintain drafts of 17'-00" forward and 22'-06" aft for a vessel loaded with grain which has a test weight of 33 lbs.Not learned 58. Using the Guidance Manual for Loading M.V. Grand Haven, determine the amount of ballast required in tank No. 5 (P & S) to maintain drafts of 17'-00" forward and 22'-06" aft for a vessel loaded with grain which has a test weight of 35 lbs.Not learned 59. Usually the most gentle way of riding out a severe storm on a larger vessel is __________.Not learned 60. Your vessel is approaching the International Bridge on the St. Mary's River. If the gage on the bridge, read from top to bottom, indicates 124 ft. and the IGLD (1955) is 600 ft., determine the actual vertical clearances between the existing water level and the lowest point of the bridge over the channel.Not learned 61. Your vessel is being assisted through an ice field in Thunder Bay by the Canadian Coast Guard icebreaker Alexander Henry. The starboard lookout reports that the icebreaker has run up the code flag "N" (November). Which action should you take?Not learned 62. A vessel which is being assisted by an icebreaker would display a flag hoist consisting of the code numeral "4" when the vessel __________.Not learned 63. Your vessel's existing draft is FWD 17'-04", AFT 18'-08". Using the Guidance Manual for Loading M.V. GRAND HAVEN, determine the new draft if 765 long tons are discharged from No. 7 hatch.Not learned 64. Your vessel's existing draft is FWD 19'-02", AFT 20'-10". Using the Guidance Manual for Loading M.V. GRAND HAVEN, determine the new draft if 170 long tons are discharged from No. 8 hatch.Not learned 65. Where on a vessel are the load line markings shown in illustration D031DG inscribed?Not learned 66. A vessel is loaded to her summer marks for a voyage from Montreal, Canada to Duluth, MN via the Great Lakes System. The voyage has been estimated to take nine (9) days. If the vessel departs Montreal on September 28th, which of the following statements is TRUE?Not learned 67. A vessel operating on the Great Lakes, and whose position is south of an approaching eastward-moving storm center, would NOT experience which condition?Not learned 68. Your vessel has been ordered to proceed to the United Grain Growers Wharf at Thunder Bay, Lake Superior, for the purpose of taking on a load of wheat. Which publication(s) would you consult for such information as the length of the wharf, the depth of the water alongside, and the loading capacity at the facility?Not learned 69. Most of your vessel's superstructure is forward. How will the vessel lie when drifting with no way on?Not learned 70. Your vessel is underway and approaching an overhead obstruction on Lake Superior. Given the following information, determine the clearance between your vessel and the obstruction. Highest point on vessel: 74 ft. Lowest point of obstruction: 126 (LWD) Monthly lake level: +2 (LWD) International Great Lakes Datum: 600.0 (182.88 meters)Not learned 71. 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 72. 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 73. 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 74. 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 75. 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 76. 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 77. 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 78. 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 79. 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 80. 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 81. 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 82. 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 83. 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 84. 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 85. 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 86. 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 87. 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 88. 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 89. 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 90. 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 91. 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 92. 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 93. 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 94. 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 95. 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 96. 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 97. 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 98. 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 99. 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 100. Fog can form in any season on the Great Lakes, but it is most likely to occur over open waters in which period?Not learned 101. Generally speaking, which direction do the more destructive storms occurring on the Great Lakes usually come from?Not learned 102. How are distances on the Great Lakes System are generally expressed?Not learned 103. How are nautical charts published by the Canadian Hydrographic service which are referenced in the United States Coast Pilot identified?Not learned 104. Your vessel is being assisted by an icebreaker. How should you indicate that you are ready to cast off the towline?Not learned 105. On the Great Lakes, which can cause short-term fluctuations in water levels?Not learned 106. On the Great Lakes, winter storms compound the ice threat by bringing a variety of wind, wave, and weather problems. On average, how often do these storms occur?Not learned 107. When is the phenomenon known as a "seiche" most likely to occur on Lake Erie?Not learned 108. Which statement concerning storm surges on the Great Lakes is TRUE?Not learned 109. Your vessel is running in a following sea. Which term defines the motion your vessel is experiencing?Not learned 110. Which statement about stopping a vessel is TRUE?Not learned 111. An icebreaker assisting a vessel through an ice field would display a visual signal consisting of the code letter "E" (Echo). What does this signal indicate?Not learned 112. When does a vessel which is being assisted by an icebreaker, display a flag hoist consisting of the code numeral "4"?Not learned