Q331 - Great Lakes Topics, USCG prep certification 2026

Progress: 24% (23/94)

Learning progress ?

1. When the height of the metacenter is greater than the height of the center of gravity, the upright equilibrium position is stable and stability is __________.Not learned 2. Which term defines the difference between the forward and aft drafts?Not learned 3. When the height of the metacenter has the same value as the height of the center of gravity, the metacentric height is equal to __________.Not learned 4. When a wind force causes a floating MODU to heel to a static angle, the __________.Not learned 5. The maximum draft to which a drilling unit may be safely loaded is called __________.Not learned 6. Which action reduces the yawing of a vessel in a following sea?Not learned 7. How are aids to navigation on the Great Lakes arranged geographically?Not learned 8. 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 9. 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 10. Which basic category of water level fluctuations on the Great Lakes is the most regular?Not learned 11. What is NOT a basic shiphandling rule for navigating in ice concentrations on the Great Lakes?Not learned 12. There are basically three categories of water level fluctuations on the Great Lakes. What is NOT included as one of these?Not learned 13. In general, an un-reinforced vessel can safely navigate in ice provided the concentration does not exceed how many tenths?Not learned 14. Which of the Great Lakes experiences the least amount of water level fluctuation between seasonal high and low water marks?Not learned 15. Which of the Great Lakes is generally the last to reach its seasonal low and seasonal high water marks?Not learned 16. 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 17. Ice concentration is measured in tenths. What concentration range of ice corresponds to 1- 3 tenths?Not learned 18. Ice concentration is measured in tenths. What concentration range of ice corresponds to "Close Pack"?Not learned 19. You are on an ice-reinforced vessel about to enter pack ice. Which action should you take?Not learned 20. 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 21. An icebreaker is displaying a flag hoist which consists of the code letters "WO" (Whiskey Oscar). What does this signal indicate?Not learned 22. 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 23. What does the line labeled "MS" indicate on the Great Lakes load line model shown in illustration D031DG below?Not learned 24. What is the meaning of a flag hoist consisting of the code letters "WM" (Whiskey Mike) when displayed by an icebreaker?Not learned 25. What is meant by the term "broaching to"?Not learned 26. If your propeller is racing in rough weather, which action should you take?Not learned 27. When running before a heavy sea, what will moving weights aft on the vessel accomplish?Not learned 28. Which term defines when a boat turns broadside to heavy seas and winds, thus exposing the boat to the danger of capsizing?Not learned 29. Multi-year ice is the hardest sea ice and should be avoided if possible. It is recognizable because of what tone to its surface color?Not learned 30. Which describes nearly half of all storms that enter the Great Lakes Basin during the period from October through May?Not learned 31. Which publication offers information on Great Lakes ice services?Not learned 32. Who publishes the "Canadian List of Lights, Buoys and Fog Signals"?Not learned 33. In which situation could a vessel most easily capsize?Not learned 34. Which statement concerning storm surges on the Great Lakes is FALSE?Not learned 35. Which statement is FALSE with regard to the Great Lakes Light List?Not learned 36. Which statement is TRUE concerning weather conditions on the Great Lakes?Not learned 37. Which statement is TRUE with respect to the load line markings shown in illustration D031DG below?Not learned 38. You are steaming in a heavy gale and find it necessary to heave to. Under most circumstances, how is this best accomplished?Not learned 39. 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 40. You are transiting the Straits of Mackinac by way of an improved channel. You have information which indicates that the channel's Federal project depth is 28 ft. Which of the following statements is true with regards to this channel?Not learned 41. Which type of ice is the most difficult to combat and presents the greatest hazard to shipping on the Great Lakes during the winter months?Not learned 42. Which type of ice is a hazard to navigation?Not learned 43. 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 44. 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 45. 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 46. Using the Guidance Manual for Loading M.V. Grand Haven, determine the amount of ballast required in tank No.1 (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 39.5 lbs.Not learned 47. 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 48. 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 49. 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 50. Where on a vessel are the load line markings shown in illustration D031DG inscribed?Not learned 51. 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 52. 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 53. 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 54. 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 55. Your vessel is on a voyage from Ogdensburg, NY, to Chicago, IL, via the Great Lakes. The date is October 3 of the current year. If your vessel is subject to the load line requirements, using illustration D031DG below, to which of her marks should she be loaded?Not learned 56. In the absence of external forces, the center of buoyancy of an inclined vessel is vertically aligned directly below the __________.Not learned 57. Which action will affect the trim of a vessel?Not learned 58. The angular movement of a vessel about a horizontal line drawn from its bow to its stern is known by which term?Not learned 59. If the cause of severe list or trim of a vessel is due to off-center ballast, counter-flooding into empty tanks will __________.Not learned 60. The center of flotation of a vessel is __________.Not learned 61. A concentration of weight has been shifted inboard to the center line of the vessel. Generally speaking, what effect will this have on the vessel?Not learned 62. When the forward drafts and the after drafts are averaged, which of the following describes the result?Not learned 63. The forward draft of your ship is 27'-11" and the after draft is 29'-03". The draft amidships is 28'-05". Which is TRUE of your vessel?Not learned 64. Heave is motion along which axis?Not learned 65. Horizontal transverse motion of a vessel is known by which term?Not learned 66. In illustration D033DG below, what is the joint indicated by letter D?Not learned 67. In illustration D033DG below, what is the plating indicated by the letter N known as?Not learned 68. In illustration D033DG below, the stringer plate is represented by which letter?Not learned 69. What name is given to the perforated, elevated bottom of the chain locker, which prevents the chains from touching the main locker bottom and allows seepage water to flow to the drains?Not learned 70. Which is the normal tendency for a loaded tanker?Not learned 71. What does subtracting GM from KM yield?Not learned 72. Which term defines the horizontal fore-and-aft movement of a vessel?Not learned 73. Which term describes the time required to incline the vessel from port to starboard and back to port again?Not learned 74. Which term is used to describe the horizontal port or starboard movement of a vessel?Not learned 75. A thirty-pound plate would be which thickness?Not learned 76. The vertical motion of a floating vessel in which the entire hull is lifted by the force of the sea is known by which term?Not learned 77. For a vessel inclined by the wind, multiplying the buoyant force by the horizontal distance between the lines of action of the buoyant and gravity forces gives which information?Not learned 78. Your vessel rolls slowly and sluggishly. What does this indicate about the vessel?Not learned 79. When a vessel is stationary and in a hogging condition, the main deck is under which type of stress?Not learned 80. A vessel can be termed as either tender or stiff in relation to its rolling period. Which of the following would cause a vessel to be tender?Not learned 81. What is the name given to the strake on each side of the keel?Not learned 82. Owing to the greater girth of a ship amidships than at the ends, certain strakes are dropped as they approach the bow and stern to reduce the amount of plating at the ends. What is the name given to these strakes?Not learned 83. In the presence of external forces, the center of buoyancy of an inclined vessel is vertically aligned with which item?Not learned 84. You are reading the draft marks as shown in illustration D032DG. The water level is about 4 inches below the bottom of the number 11. What is the draft?Not learned 85. You are reading the draft marks as shown in illustration D032DG. The water level is at the bottom of number 11. What is the draft?Not learned 86. You are reading the draft marks as shown in illustration D032DG. The water level forward leaves about 4 inches of the 11 visible, and the water level aft is at the top of the 10. What is the mean draft?Not learned 87. A ship's forward draft is 22'-04" and its after draft is 23'-00". The draft amidships is 23'-04". Using this information, where is the concentration of weight on the vessel?Not learned 88. A ship's forward draft is 22'-04" and it’s after draft is 24'-00". The draft amidships is 23'-04". This indicates a concentration of weight is located at which of the following areas?Not learned 89. Where do signs of racking stresses generally appear on the vessel?Not learned 90. Tensile stress is a result of two forces acting in __________.Not learned 91. Which term describes the horizontal fore or aft motion of a vessel?Not learned 92. Which is the term given to the joint formed when two steel plates are placed end-to-end?Not learned 93. Which term indicates the rise in height of the bottom plating from the plane of the base line?Not learned 94. Transverse frames are more widely spaced on a ship that is designed with the __________.Not learned 95. Your vessel is discharging containers from the main deck with the ship's cranes. Which of the following must be taken into account when calculating the center of gravity as the containers are discharged?Not learned 96. A vessel with a large GM will __________.Not learned 97. A vessel is "listed" when it is __________.Not learned 98. If a vessel is sagging, what kind of stress is placed on the sheer strake?Not learned 99. A vessel with a small GM will __________.Not learned 100. The wind has caused a difference between drafts starboard and port. This difference is known as which of the following?Not learned 101. Yawing is angular motion of the vessel about what axis?Not learned 102. A floating vessel will behave as if all of its weight is acting downward through which point?Not learned 103. A vessel operating on the Great Lakes, and whose position is south of an eastward-moving storm center, would experience which condition?Not learned 104. 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 105. Generally speaking, which direction do the more destructive storms occurring on the Great Lakes usually come from?Not learned 106. How are distances on the Great Lakes System are generally expressed?Not learned 107. How are nautical charts published by the Canadian Hydrographic service which are referenced in the United States Coast Pilot identified?Not learned 108. Your vessel is being assisted by an icebreaker. How should you indicate that you are ready to cast off the towline?Not learned 109. On the Great Lakes, which can cause short-term fluctuations in water levels?Not learned 110. 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 111. What is the thickness of a 30.6-pound plate?Not learned 112. When is the phenomenon known as a "seiche" most likely to occur on Lake Erie?Not learned 113. Your vessel is running in a following sea. Which term defines the motion your vessel is experiencing?Not learned 114. If the cause of a sudden severe list or trim is negative initial stability, counter-flooding into empty tanks located high on the vessel, may cause which of the following?Not learned 115. What is the center of flotation of a vessel?Not learned