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Deck · 5,775 questions

Deck General - USCG Exam Questions

Seamanship in the broad sense: marlinespike, ground tackle and anchoring, mooring and towing, weather, stability basics, and day-to-day vessel operations.

Every question below is a real U.S. Coast Guard exam question with four choices. Answer one and the correct choice is revealed instantly, with the USCG reference and illustration where the question uses one.

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All Deck General questions

Questions 4,701–4,800 of 5,775 · page 48 of 58

  1. #5073 In ballasting to survival draft, while in transit, due to extreme wind and wave loads, thrusters or propulsion, if available, should be used to ______...
  2. #5074 Starboard ballast pump #1 on the DEEP DRILLER has failed. To deballast from tank C2SA using starboard ballast pump #2, it is necessary to open the man...
  3. #5075 During a storm, the chance of fatigue failure of a mooring line will increase as __________.
  4. #5076 During preloading or elevating the COASTAL DRILLER, jacking-up may continue if the total weight is less than __________.
  5. #5077 While loaded as shown in the COASTAL DRILLER sample load form #3 (drilling), 200 kips are discharged from 60 feet AF0 and 30 feet to starboard of the...
  6. #5078 On the DEEP DRILLER, among the starboard-side valves to open when flooding through the overboard discharge into ballast tank 1S is valve __________.
  7. #5079 When taking soundings on a MODU, coating the tape with chalk helps to __________.
  8. #5080 The DEEP DRILLER is loaded as shown in Sample Load Form #4 (Drilling). While the unit is deballasting, starboard valve 17 fails in the closed position...
  9. #5081 When taking soundings on a floating MODU, the tape should be lowered and brought back quickly to __________.
  10. #5082 If the result of loading a MODU is an increase in the height of the center of gravity, there will always be an increase in the __________.
  11. #5083 While in ocean transit, the COASTAL DRILLER experiences a single amplitude roll of 5 degrees. What is the minimum roll period that does not exceed the...
  12. #5084 The COASTAL DRILLER, elevated in 200 feet of water, has two knots of current and 70 knot winds. With a maximum leg reaction of 5,840 kips, the maximum...
  13. #5085 A semisubmersible floating in sea water displaces 717,500 cubic feet. What is the displacement?
  14. #5086 It is vital to the safety of the elevated COASTAL DRILLER that the hull be kept above __________.
  15. #5087 Use of air gaps in excess of that stated in the Limits of Elevated Service for the COASTAL DRILLER could result in __________.
  16. #5088 Starboard ballast pump #1 on the DEEP DRILLER has failed. If you want to deballast from the forward-starboard column using starboard pump #2, it is ne...
  17. #5089 While elevated as shown in Sample Load Form #3 (Drilling), winds are 57 knots and current is 2 knots. What is the maximum wave height allowed for dril...
  18. #5090 The COASTAL DRILLER, while drilling, has a total weight of 15,400 kips. The LCG is 120.00 feet AF0, and the TCG is -0.5 feet to port of the centerline...
  19. #5091 The COASTAL DRILLER, while drilling has a total weight of 15,435 kips. The LM are 1,975,680 ft-kips and the TM are -15,435 ft-kips. What is the starbo...
  20. #5092 The DEEP DRILLER, at 58.0 feet draft in sea water, discharges 200 long tons. What is the new draft?
  21. #5093 In deballasting to survival draft because of extreme wind and wave loads, thrusters or propulsion, if available, should be used to __________.
  22. #5094 For planning purposes, the time required to place the DEEP DRILLER at survival draft from the drilling mode to counter heavy weather is __________.
  23. #5095 Air gap is the vertical distance between the bottom of the hull and the __________.
  24. #5096 During jacking operations and transit, empty void spaces in the hull of a jack up MODU provide __________.
  25. #5097 While loaded as shown in the DEEP DRILLER Sample Load Form #4 (Drilling), a severe storm threatens. What is the improvement in KGL if all the mud is d...
  26. #5098 While on an ocean tow, the COASTAL DRILLER is threatened with the approach of a severe storm. The legs should be lowered so that the TOC (tip-of-can)...
  27. #5099 The COASTAL DRILLER, with a draft of 10 feet 6 inches, has a displacement of __________.
  28. #5100 The lightweight longitudinal moments for the DEEP DRILLER are __________.
  29. #5101 Especially in adverse weather, risk of collision with an offshore supply vessel increases when the vessel is moored to what side of the unit?
  30. #5102 The COASTAL DRILLER, when underway was loaded as shown in Sample Load Form #1 (Rig Move). It is now preloaded at minimum air gap waiting for all settl...
  31. #5103 When clear ice is present when the DEEP DRILLER is in transit, the vertical moments are increased by __________.
  32. #5104 Port ballast pump #1 on the DEEP DRILLER has failed. If you want to deballast the forward-port column using port ballast pump #2, it is necessary to o...
  33. #5105 If the maximum leg penetration of the COASTAL DRILLER is 75 feet, the water depth value in the Allowable Wind and Wave Charts must be increased by ___...
  34. #5106 To effectively use the crossover system on the DEEP DRILLER to pump from the low side using a high side ballast pump, transverse inclinations should n...
  35. #5107 When threatened with a severe storm while operating in 250 feet of water, the COASTAL DRILLER should be placed at an air gap of __________.
  36. #5108 During storm conditions on a MODU, the mooring tensions should be adjusted so that __________.
  37. #5109 On the DEEP DRILLER, among the valves to open when transferring ballast from Tank 1S to Tank 10P using the #1 ballast pump is valve __________.
  38. #5110 On the DEEP DRILLER, among the starboard-side valves to open when deballasting from ballast tank 2S is valve __________.
  39. #5111 The distance from the still water level (corrected for tides and storm surge) to the bottom of the hull of a MODU is the __________.
  40. #5112 A non-symmetrical tank aboard a MODU contains 390 tons of ballast at a VCG of 9.85 feet. Ballast weighing 250 tons and a VCG of 12.0 feet is discharge...
  41. #5113 While loaded as shown in the COASTAL DRILLER Sample Load Form #3 (Drilling), 236 kips are discharged from 80 feet AF0 and 19.79 feet to port of the ce...
  42. #5114 On the DEEP DRILLER, when using the starboard #2 ballast pump to provide water to the main deck from the sea, it is necessary to open valves _________...
  43. #5115 For a jack-up, the angle of maximum stability corresponds approximately to the angle of __________.
  44. #5116 What port-side valves must be open to transfer ballast from Tank 1P to Tank 10P on the DEEP DRILLER using the Port #1 ballast pump?
  45. #5117 A semisubmersible is more likely to experience structural stresses during heavy weather when __________.
  46. #5118 What port-side valves must be open to transfer ballast from Tank 10P to Tank 1P on the DEEP DRILLER, using the Port #1 ballast pump?
  47. #5119 The COASTAL DRILLER, elevated in 100 feet of water with 0 knots current, 30 foot waves, and wind speeds of 50 knots may continue drilling if the maxim...
  48. #5120 Among the valves on the DEEP DRILLER which may be opened when using the Salt-Water Service Pump to pump water into Tank 1P is __________.
  49. #5121 The COASTAL DRILLER, while in an ocean transit, experiences a single amplitude roll of 8 degrees. What is the minimum period of motion which does not...
  50. #5122 You are operating a liftboat. In preparation for jacking you should __________.
  51. #5123 During the passage of a severe storm the maximum vertical moments, including free surface moments, permitted on the DEEP DRILLER at survival draft is...
  52. #5124 The maximum transverse extension of the cantilever for the COASTAL DRILLER places the rotary __________.
  53. #5125 Among the valves on the DEEP DRILLER to open when using the Salt-Water Service Pump to pump water into tank 10S is __________.
  54. #5126 When two ballast pumps used for deballasting a single tank start cavitating, you should __________.
  55. #5127 While preloading, the COASTAL DRILLER has a total weight of 21,401 kips. The LM are 2,560,416 ft-kips, and the TM are 6,206 ft-kips. What is the bow l...
  56. #5128 In case of minor damage to lower-hull tank 1P while the DEEP DRILLER is in transit, you should pump from tank 1P using __________.
  57. #5129 The DEEP DRILLER, at 60.0 feet draft in sea water, discharges 275.8 long tons. What is the new draft?
  58. #5130 On the DEEP DRILLER, among the valves to open when transferring ballast from Tank 10P to Tank 1S using the #2 ballast pump is valve __________.
  59. #5131 On the DEEP DRILLER, among the valves to open when transferring ballast from Tank 10S to Tank 1P using the #2 ballast pump is valve __________.
  60. #5132 On the DEEP DRILLER, among the starboard-side valves to open when deballasting from ballast tank 2S is valve __________.
  61. #5133 The longitudinal distance between draft marks for the DEEP DRILLER is __________.
  62. #5134 When leveling the elevated COASTAL DRILLER, you may raise the low corner instead of lowering the high corner __________.
  63. #5135 Among the valves to open when deballasting using tanks 1P and 10P of the DEEP DRILLER is __________.
  64. #5136 The DEEP DRILLER, loaded as shown in Sample Load Form #1 (Transit), suffers minor damage which results in flooding in tank 1P. You may pump from _____...
  65. #5137 In case of major damage to column C1P while the DEEP DRILLER is on location, you should pump from port-forward lower-hull tanks using __________.
  66. #5138 When the COASTAL DRILLER is afloat, the water for the saltwater eductor system is provided by __________.
  67. #5139 The DEEP DRILLER, at 58.0 feet draft in sea water, loads 200 long tons. What is the new displacement?
  68. #5140 The draft of the DEEP DRILLER in the lightweight condition is __________.
  69. #5141 What are the maximum acceptable levels of ice and snow accumulations on the COASTAL DRILLER?
  70. #5142 When the COASTAL DRILLER is level at a draft of 10.5 feet, what is the value of the LCG?
  71. #5143 The DEEP DRILLER is loaded as shown in the Sample Load Form #1 (Transit). Weather conditions require ballasting to survival draft. Assume that 4087 lo...
  72. #5144 The DEEP DRILLER, at 58.0 feet draft in sea water, discharges 200 long tons. What is the new displacement?
  73. #5145 While in transit at a draft of 20.5 feet, the DEEP DRILLER has a KGT of 65.00 feet. What is the GMT?
  74. #5146 The DEEP DRILLER, at 58.0 feet draft in sea water, places 275.8 long tons on board. What is the new draft?
  75. #5147 The DEEP DRILLER is operating at the maximum allowable KGT at 60 feet draft. What is the value of GMT?
  76. #5148 What is the lightweight of the DEEP DRILLER?
  77. #5149 The lightweight longitudinal free surface moments for the DEEP DRILLER are __________.
  78. #5150 The lightweight vertical moments for the DEEP DRILLER are __________.
  79. #5151 The lightweight transverse free surface moments for the DEEP DRILLER are __________.
  80. #5152 The COASTAL DRILLER has a trim of 2.13 feet by the stern. The draft in sea water at the forward draft marks is observed to be 8.0 feet. The KML is ___...
  81. #5153 The transverse distance between draft marks for the DEEP DRILLER is __________.
  82. #5154 The COASTAL DRILLER has a trim of 2.13 feet by the stern. The draft in sea water at the forward draft marks is observed to be 8.0 feet. The KMT is ___...
  83. #5155 The COASTAL DRILLER, with a displacement of 13,553 kips, has a draft of __________.
  84. #5156 When assuming the maximum ice weight accumulation on the DEEP DRILLER at survival draft, the vertical moments are increased by __________.
  85. #5157 The COASTAL DRILLER is in transit at a draft of 10.5 feet. It discharges 216.43 kips of weight. What is the new draft?
  86. #5158 While underway in a field move with the lower hulls awash, a semisubmersible has a maximum allowable KG of 63.69 feet; KMT is 65.12 and KML is 64.92....
  87. #5159 The DEEP DRILLER's lightweight is the condition prior to loading __________.
  88. #5160 The height of the longitudinal metacenter of the COASTAL DRILLER at a displacement of 13,810 kips is __________.
  89. #5161 The COASTAL DRILLER is elevated to an air gap of 25 feet in 250 feet of water. The current is 2 knots and the waves are 30 feet. The maximum leg react...
  90. #5162 The height of the transverse metacenter of the COASTAL DRILLER at a displacement of 13,011 kips is __________.
  91. #5163 The DEEP DRILLER is loaded as shown in the Sample Load Form #3 (Preparing to Drill). According to the deck load graph, how much additional deck load c...
  92. #5164 The DEEP DRILLER as currently configured is limited to a maximum water depth of __________.
  93. #5165 The longitudinal location of the center of flotation for the COASTAL DRILLER has a value of __________.
  94. #5166 The DEEP DRILLER is loaded as shown in the Sample Load Form #1 (Transit). Weather conditions make it necessary to ballast down to survival draft. It i...
  95. #5167 Subtracting the height of the center of gravity corrected for longitudinal free surface effects from the height of the longitudinal metacenter of a MO...
  96. #5168 Subtracting the height of the center of gravity corrected for transverse free surface effects from the height of the transverse metacenter of a MODU y...
  97. #5169 The DEEP DRILLER is loaded as shown in the Sample Load Form #1 (Transit). Additional deck load may be placed aboard. If the maximum permissible deck l...
  98. #5170 The COASTAL DRILLER, while drilling, has a total weight of 15,400 kips. The LCG is 120.00 feet AF0, and the TCG is -0.5 feet to port of the centerline...
  99. #5171 The DEEP DRILLER may remain at operating draft instead of deballasting to survival draft when __________.
  100. #5172 Adding the transverse free surface correction to the uncorrected height of the center of gravity of a MODU yields __________.

Deck General questions: what to expect

Q How many Deck General questions are in the Deck pool?

There are 5,775 Deck General questions on this site, every one released by the U.S. Coast Guard or taken from the National Maritime Center's sample examinations, with its correct answer. The exam draws its Deck General module from the same pool.

Q What score do I need to pass the Deck General module?

Most USCG exam modules, including Deck General, require 70 percent to pass. Rules of the Road modules require 90 percent.

Q Are these the real USCG Deck General exam questions?

Yes. They are the published U.S. Coast Guard questions, matched to the National Maritime Center's 2026 sample examinations. Answer any question to see the correct choice, the USCG reference and the illustration where the question uses one.

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About the Deck question pool

The Deck pool holds the current U.S. Coast Guard questions for every deck credential, from Able Seaman and the OUPV six-pack up to unlimited Master. Each question is multiple choice with four options, graded instantly, with the USCG reference shown where one exists.