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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 4,801–4,900 of 5,775 · page 49 of 58

  1. #5173 The DEEP DRILLER as currently configured is limited to a maximum drilling depth of __________.
  2. #5174 The DEEP DRILLER is drilling at 60 feet draft at a corrected KG of 54.0 feet. Ballast added or discharged to remain at a constant draft is at a VCG of...
  3. #5175 The DEEP DRILLER is planning to operate while loaded as shown in the Sample Load Form #3 ( Preparing to Drill). What is the margin between KGT and max...
  4. #5176 When the height of the metacenter has the same value as the height of the center of gravity, the metacentric height is equal to __________.
  5. #5177 The DEEP DRILLER is loaded as shown in the Sample Load Form #1 (Transit). What is the new height of the center of gravity corrected for longitudinal f...
  6. #5178 Until a change to lightweight has been approved, the weights and moments shown in the Changes to Lightweight Record of the COASTAL DRILLER are treated...
  7. #5179 The DEEP DRILLER, loaded as shown in the Sample Load Form #4 (Drilling), discharges all the cement in the P-Tanks. See Table 7. What is the change in...
  8. #5180 Where the seabed consists of sand or silt, the most severe potential problem for an independent-leg jack-up can result from __________.
  9. #5181 The DEEP DRILLER, at 60.0 feet draft in sea water, has VM = 974,441 foot-long tons, LM = 3 foot-long tons, FSML = 30,572 foot-long tons, and FSMT = 18...
  10. #5182 While the COASTAL DRILLER is in transit, stability is acceptable provided that neither the KGL nor the KGT exceed __________.
  11. #5183 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 star...
  12. #5184 What device is used to measure the force exerted on the rig by a leg of the mooring system?
  13. #5185 The COASTAL DRILLER, while in a normal transit, experiences single amplitude rolling of three degrees. What is the minimum period of roll which does n...
  14. #5186 The center of flotation for the COASTAL DRILLER is located at the geometric center of the __________.
  15. #5187 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 foot to port of the centerline...
  16. #5188 The COASTAL DRILLER, in transit with winds expected to exceed 70 knots, must lower the legs to 60.5 feet below the hull in order to meet the requireme...
  17. #5189 The elevating system of the COASTAL DRILLER is normally limited to __________.
  18. #5190 The total leg load reactions on an independent leg, self-elevating unit include static and __________.
  19. #5191 Buoyancy associated with empty or partly empty ballast tanks in the mat of a mat supported jack-up MODU during jacking operations can cause __________...
  20. #5192 When elevated, placing the LCG and TCG at the leg centroid provides __________.
  21. #5193 Sea water temporarily pumped into tanks to simulate the increased vertical loading of environmental forces is termed __________.
  22. #5194 The COASTAL DRILLER, following discharge of preload, should __________.
  23. #5195 When the COASTAL DRILLER is properly preloaded, each of the leg reactions should be __________.
  24. #5196 What is the port leg reaction for the COASTAL DRILLER if the total weight is 15,000 kips, LCG is 120 feet, and TCG is 1.0?
  25. #5197 The COASTAL DRILLER, elevated in 150 feet of water with 0 knots current, 10 foot waves, and wind speeds of 70 knots may continue drilling if the maxim...
  26. #5198 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...
  27. #5199 When preloading the COASTAL DRILLER, the maximum total weight shall not exceed __________.
  28. #5200 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 port...
  29. #5201 You are operating a liftboat. When jacking down and a leg becomes stuck on the bottom, you should __________.
  30. #5202 The DEEP DRILLER may remain at operating draft instead of deballasting to survival draft when __________.
  31. #5203 To maintain a high state of readiness against the possibility of damage and subsequent flooding while aboard the DEEP DRILLER, you should __________.
  32. #5204 You are operating a liftboat. When jacking down and free of the bottom you should __________.
  33. #5205 You are operating a liftboat. When beginning to jack down you should __________.
  34. #5206 For optimum stability during jacking operations, mat ballast tanks or spud cans should be __________.
  35. #5207 If uniformly distributed in the cantilever pipe rack of the COASTAL DRILLER, how much pipe can be placed in the cantilever pipe rack area when the can...
  36. #5208 Lowering the hull of the COASTAL DRILLER and refloating should be done in favorable weather conditions with wave heights not more than __________.
  37. #5209 When elevating the COASTAL DRILLER in 100 feet of water, the unit should be placed at an air gap of __________.
  38. #5210 When elevating the COASTAL DRILLER in 150 feet of water, the unit should be placed at an air gap of __________.
  39. #5211 A mat-supported jack-up is best suited for drilling in locations with bottom conditions which are __________.
  40. #5212 The COASTAL DRILLER is elevated in 192 feet of water. Leg penetration is 83 feet. The maximum leg reaction is 5,940 kips. The waves are 30 feet and th...
  41. #5213 Which data is NOT used in the Allowable Wind and Wave Charts for the COASTAL DRILLER?
  42. #5214 Environmental loading consists of the forces caused by wind, waves, and __________.
  43. #5215 While the COASTAL DRILLER is in normal transit, the roll period is 8 seconds. What would be the limiting angle of pitch which does not exceed the desi...
  44. #5216 While in 150 feet water depth when the single amplitude roll angle of the COASTAL DRILLER is 1 degree, the safe platform roll period for going on loca...
  45. #5217 While in 150 feet water depth when the single amplitude roll angle of the COASTAL DRILLER is 2 degrees, the safe platform roll period for going on loc...
  46. #5218 While in ocean transit, the COASTAL DRILLER has a roll period of 9 seconds. What is the largest angle each side of vertical that does not exceed the d...
  47. #5219 While the COASTAL DRILLER is in a normal transit, the roll period is 9 seconds. What is the limiting angle of roll which does not exceed the design li...
  48. #5220 The COASTAL DRILLER, while in normal transit, experiences a single amplitude roll of 6 degrees. What is the minimum roll period which does not exceed...
  49. #5221 On the COASTAL DRILLER, the maximum aft extension of the cantilever places the rotary __________.
  50. #5222 The independent-leg drilling unit is the best jack-up rig selection for drilling at locations with __________.
  51. #5223 The Cantilever Beam Load Chart for the COASTAL DRILLER shows the limits in the hook setback conductor tension, and __________.
  52. #5224 The COASTAL DRILLER is elevated in 250 feet of water, experiencing 2 knots current and 70 knot winds. With a maximum leg reaction of 5,760 kips, the m...
  53. #5225 The maximum combined drilling load for the COASTAL DRILLER consisting of the combined hook, rotary, setback, and conductor tension, shall not exceed _...
  54. #5226 What information must be available to use the Allowable Wind and Wave Charts for the COASTAL DRILLER?
  55. #5227 In using the Allowable Wind and Wave Charts for the COASTAL DRILLER, leg penetration is assumed to be less than __________.
  56. #5228 Among the equipment included in the DEEP DRILLER lightweight are the derrick, traveling block in the lowest position, anchors, mooring chain, all mach...
  57. #5229 Among the equipment included in the DEEP DRILLER lightweight are the loading hoses, traveling block in the lowest position, anchors, mooring chain, al...
  58. #5230 Among the equipment included in the DEEP DRILLER lightweight are the loading hoses, derrick, traveling block in the lowest position, mooring chain, al...
  59. #5231 The marine riser on the DEEP DRILLER should be disconnected if it appears the ball joint angle will exceed 10° or the mooring line tensions will e...
  60. #5232 The marine riser on the DEEP DRILLER should be disconnected if it appears the mooring line tensions will exceed 522 kips or the ball joint angle will...
  61. #5233 The DEEP DRILLER is loaded as shown in the Sample Load Form #4 (Drilling). According to the deck load graph, how much additional deck load could be ad...
  62. #5234 You should consider placing the drilling operations of the DEEP DRILLER in standby when __________.
  63. #5235 The DEEP DRILLER is loaded as shown in Sample Load Form #4, (Drilling). In preparing for approaching heavy weather, the four leeward mooring lines are...
  64. #5236 For a semisubmersible moored in heavy weather conditions, the weather lines should be adjusted so that several lines carry about the same tension, and...
  65. #5237 When clear ice is present while drilling, the vertical transverse moments of the DEEP DRILLER are increased by __________.
  66. #5238 In storm conditions, when the DEEP DRILLER is in 600 feet water depth, and the high-line tension (HLT) is 350 kips, completely slacking the two leewar...
  67. #5239 In storm conditions, with the wind and waves from the starboard bow of the DEEP DRILLER in 400 feet water depth, the offset is 7%. Completely slacking...
  68. #5240 In storm conditions in 600 feet of water, completely slacking the leeward mooring line of the DEEP DRILLER reduces the tension in that line to about _...
  69. #5241 In storm conditions, with the wind and waves from the port bow of the DEEP DRILLER in 400 feet water depth, the tensions in mooring lines 1 and 2 are...
  70. #5242 In storm conditions, with the wind and waves from the port bow of the DEEP DRILLER in 600 feet water depth, the tensions in mooring line 1 and 2 are 4...
  71. #5243 It is proposed to moor the DEEP DRILLER in 600 feet of water in a region in which the effective wind velocity could reach 80 knots, significant wave h...
  72. #5244 It is proposed to moor the DEEP DRILLER in 600 feet of water in a region in which the effective wind velocity could reach 80 knots, significant wave h...
  73. #5245 The DEEP DRILLER is loaded as shown in the Sample Load Form #1 (Transit). If weather conditions make it necessary to ballast down to survival, how muc...
  74. #5246 In storm conditions, when the environmental conditions are such that the DEEP DRILLER has disconnected the marine riser, the two leeward mooring lines...
  75. #5247 The DEEP DRILLER is engaged in wire line logging. You have 10,000 feet of drill pipe and bottom hole assembly in the set back. Marine weather forecast...
  76. #5248 During the passage of a severe storm, the DEEP DRILLER is at survival draft. Strong winds are blowing from the starboard. A careful load form calculat...
  77. #5249 Before deballasting to survival draft in the event of predicted heavy weather, the DEEP DRILLER Operations Manual recommends that the mooring lines be...
  78. #5250 For the DEEP DRILLER, in deballasting to survival draft when threatened with heavy weather from 100 knot winds, a load form should be calculated to de...
  79. #5251 The DEEP DRILLER is on location during a storm. Windward anchor tensions begin to exceed the test tensions. To reduce tensions while minimizing offset...
  80. #5252 The principal action in changing from transit to survival draft in the event heavy weather threatens is __________.
  81. #5253 In a severe storm while elevated, the drilling loads on the COASTAL DRILLER must be considered as __________.
  82. #5254 During a severe storm while the COASTAL DRILLER is elevated, on board loads must be shifted so that the TCG is on the centerline and the LCG is ______...
  83. #5255 The COASTAL DRILLER is loaded as shown in the Sample Load Form #1 (Rig Move). What is the margin on the maximum allowable KG if winds increase to grea...
  84. #5256 The COASTAL DRILLER is loaded as shown in the Sample Load Form #1 (Rig Move). How much more variable load in kips can be placed on the unit if winds r...
  85. #5257 The COASTAL DRILLER is loaded as shown in the Sample Load Form #1 (Rig Move). How much more variable load in kips can be placed on the unit if winds i...
  86. #5258 The COASTAL DRILLER is loaded as shown in the Sample Load Form #1 (Rig Move). What is the margin on the maximum allowable KG if winds remain less than...
  87. #5259 The COASTAL DRILLER is loaded as shown in the Sample Load Form #1 (Rig Move). While in field transit, the wind speeds are predicted to increase above...
  88. #5260 If a severe storm threatens the COASTAL DRILLER while elevated, the setback in the derrick should be lowered and placed in the pipe rack. Its weight s...
  89. #5261 The maximum weight for the COASTAL DRILLER in severe storm conditions is __________.
  90. #5262 A severe storm threatens the COASTAL DRILLER, and a decision is made to evacuate the unit. If practical, all non-essential personnel should be off the...
  91. #5263 While preparing for a storm when elevated, the total weight of the COASTAL DRILLER is 14,150 kips, LM are 1,712,150 ft-kips, and TM are -9,905 ft-kips...
  92. #5264 While preparing for a storm when elevated, the total weight of the COASTAL DRILLER is 14,150 kips, LM are 1,712,150 ft-kips, and TM are -9,905 ft-kips...
  93. #5265 While preparing for a storm when elevated, the total weight of the COASTAL DRILLER is 14,150 kips. LM are 1,712,150 ft-kips, and TM are -9,905 ft-kips...
  94. #5266 While on an ocean tow, the COASTAL DRILLER is threatened with the approach of a severe storm. Including the time required to place the generators on-l...
  95. #5267 The COASTAL DRILLER, in transit with winds expected to exceed 70 knots, must lower the legs so that the can tips are __________.
  96. #5268 The COASTAL DRILLER, in transit with winds expected to exceed 70 knots, must lower the legs to 60.5 feet below the hull in order to meet the requireme...
  97. #5269 In an emergency, the jacking system on the COASTAL DRILLER is capable of elevating the unit with a loading of __________.
  98. #5270 The COASTAL DRILLER is elevated while preparing for the passage of a severe storm. With ideal loading, the static loading on each of the three legs wo...
  99. #5271 When sailing with the wind aft, a vessel may carry sails on both sides at the same time. Which is the proper term for this configuration?
  100. #5272 You are under sail on a close reach, and the wind is steady. While steady on course, you reef the mainsail and your speed slows. Which is TRUE about t...

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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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.