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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 4,101–4,200 of 5,775 · page 42 of 58

  1. #4292 A quick and rapid motion of a MODU in a seaway is an indication of a(n) __________.
  2. #4293 One way to increase the period of roll on a semisubmersible rig while under tow is to __________.
  3. #4294 On a semisubmersible drilling unit, increasing riser tension increases __________.
  4. #4295 A semisubmersible which will not remain upright and will assume a list either to port or starboard is likely to have __________.
  5. #4296 Semisubmersibles A and B are identical. However, "A" is more tender than "B". This means that "A" relative to "B" has a __________.
  6. #4297 In the analysis of damaged stability for the DEEP DRILLER, disregarded are the beneficial effects of moorings and __________.
  7. #4298 Progressive flooding on a MODU may be indicated by __________.
  8. #4299 The DEEP DRILLER, loaded as shown in Sample Load Form #4 (Drilling), suffers major damage which results in flooding in tank C1P. Your best countermeas...
  9. #4300 In the DEEP DRILLER, VCG is obtained from the sum of the vertical moments by __________.
  10. #4301 On a semisubmersible drilling unit, decreasing riser tension reduces __________.
  11. #4302 In the DEEP DRILLER, the longitudinal free surface correction (FSCL) is obtained from the total of the longitudinal free surface moments (FSML) by ___...
  12. #4303 Repair of vital machinery and services on a MODU should be accomplished __________.
  13. #4304 On a semisubmersible drilling unit, decreasing riser tension increases __________.
  14. #4305 A virtual rise in the center of gravity of a MODU may be caused by __________.
  15. #4306 The angle of loll is a stability term which applies to a floating MODU with __________.
  16. #4307 A semisubmersible which flops between forward and aft trim angles is likely to have __________.
  17. #4308 The jettisoning of topside weight from a MODU serves what purpose?
  18. #4309 Subtracting FSCT from KGT yields __________.
  19. #4310 The stability which exists after the unintentional flooding of a compartment on a MODU is called __________.
  20. #4311 Damage stability of a MODU is the stability __________.
  21. #4312 The downflooding angle for a MODU is the maximum angle at which __________.
  22. #4313 Fighting a rig fire in a watertight compartment with hoses could reduce the stability of the rig by __________.
  23. #4314 The COASTAL DRILLER's ability to meet the damage stability criteria depends on maintaining a watertight integrity, KGL and KGT less than maximum allow...
  24. #4315 A continual worsening of the list or trim of any floating MODU indicates __________.
  25. #4316 The best information on the nature and extent of damage on a MODU is obtained from __________.
  26. #4317 The maximum angle at which the intact stability curves are valid for MODU's is the angle for __________.
  27. #4318 When a floating MODU inclines to an angle slightly less than the angle of loll, she will __________.
  28. #4320 A MODU is inclined at an angle of loll. In the absence of external forces, the righting arm (GZ) is __________.
  29. #4321 The DEEP DRILLER, loaded as shown in Sample Load Form #5 (Survival), suffers major damage which results in flooding in tank C3S. Your best countermeas...
  30. #4322 The DEEP DRILLER, loaded as shown in Sample Load Form #4 (Drilling), suffers major damage which results in flooding in tank C1P. Pumping from tanks in...
  31. #4323 The DEEP DRILLER, loaded as shown in Sample Load Form #2 (Ballast to Survival), suffers major damage which results in flooding in tank C3S. Pumping fr...
  32. #4324 The DEEP DRILLER, loaded as shown in Sample Load Form #2 (Ballast to Survival), suffers major damage which results in flooding in tank 10S. Your best...
  33. #4325 The DEEP DRILLER, while loaded as shown in the Sample Load Form #4 (Drilling), suffers severe damage to the starboard forward column below the waterli...
  34. #4326 While the DEEP DRILLER is operating loaded as shown in Sample Load Form #4 (Drilling), casing is accidentally dropped over the port side. If the port...
  35. #4327 The DEEP DRILLER, while loaded as shown in the Sample Load Form #4 (Drilling), suffers damage to the port center column below the waterline. Among the...
  36. #4328 The DEEP DRILLER, while loaded as shown in the Sample Load Form #4 (Drilling), suffers severe damage to the port aft column below the waterline. You s...
  37. #4329 While the DEEP DRILLER is operating as shown in Sample Form #4 (Drilling), casing is accidentally dropped over the starboard side. If the starboard af...
  38. #4330 The DEEP DRILLER suffers minor flooding of the port pump room. If both port bilge pumps fail to dewater the pump room, you should use the __________.
  39. #4331 The DEEP DRILLER, while loaded as shown in the Sample Load Form #4 (Drilling), suffers damage to the starboard aft column below the waterline. Pumping...
  40. #4332 The most important consideration in the event the Deep Driller suffers damage is __________.
  41. #4333 In the event of damage to the DEEP DRILLER which results in flooding to one of the lower-hull tanks, pump from __________.
  42. #4334 If the DEEP DRILLER is damaged, the unit is designed to avoid downflooding in wind speeds up to __________.
  43. #4335 The DEEP DRILLER, at a draft of 60 feet, has 35,000 ft-tons of longitudinal moments. How much ballast should be transferred between tanks 1P and 10P t...
  44. #4336 The DEEP DRILLER, at a draft of 60 feet, has 50,000 ft-tons of longitudinal moments. How much ballast should be transferred between tanks 1P and 10P t...
  45. #4337 The DEEP DRILLER, at a draft of 60 feet and a total vertical moment of 1,012,598 foot-tons, pumps 2,068.7 long tons of ballast overboard. The VCG of t...
  46. #4339 With no environmental forces on the DEEP DRILLER, the average of the forward drafts is 59.0 feet, and the average of the aft drafts is 61.0 feet. KGL...
  47. #4340 The DEEP DRILLER, at a draft of 19 feet, has a KGL of 59.91 feet and an LCG of 1.57 feet. What is the trim angle?
  48. #4341 The DEEP DRILLER, at a draft of 60 feet, has a KGL of 55.4 feet and an LCG of 2.43 feet. What is the trim angle?
  49. #4342 The DEEP DRILLER, at a draft of 60 feet, has a KGT of 57.11 feet and TCG of 0.5 foot to port. What is the list angle?
  50. #4343 The DEEP DRILLER, at a draft of 55 feet, has a KGT of 53.05 feet and TCG of 0.5 foot to starboard. What is the list angle?
  51. #4344 The DEEP DRILLER is loaded as shown in Sample Load Form #4 (Drilling). If port valves 24 and 2 are mistakenly opened, the change in inclination will b...
  52. #4345 The DEEP DRILLER suffers minor flooding of the starboard pump room. If both starboard bilge pumps fail to dewater the pump room, you should use the __...
  53. #4346 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...
  54. #4347 What is the shift in KG if all the liquid mud is dumped when the DEEP DRILLER is loaded as shown in the Sample Load #3 (Preparing to Drill)?
  55. #4348 The DEEP DRILLER is observed to be level at a draft of 60.0 feet. At the same time, the calculated load form shows the displacement to be 17,845 long...
  56. #4349 The DEEP DRILLER is observed to be level at a draft of 60.0 feet. At the same time, the calculated load form shows the displacement to be 17,845 long...
  57. #4350 The DEEP DRILLER is loaded as shown in the Sample Load Form #2 (Ballasting to Survival). What is the metacentric height corrected for transverse free...
  58. #4351 The DEEP DRILLER is loaded as shown in the Sample Load Form #2 (Ballasting to Survival). What is the shift in LCG if 100.76 long tons of ballast are a...
  59. #4352 The DEEP DRILLER is loaded as shown in the Sample Load Form #2 (Ballasting to Survival). What is the new height of the transverse metacenter if all th...
  60. #4353 The DEEP DRILLER is loaded as shown in the Sample Load Form #2 (Ballasting to Survival). What is the new height of the longitudinal metacenter if all...
  61. #4354 The DEEP DRILLER is loaded as shown in the Sample Load Form #2 (Ballast to Survival). What is the new longitudinal location of the center of buoyancy...
  62. #4355 The DEEP DRILLER is loaded as shown in the Sample Load Form #1 (Transit). What is the new metacentric height corrected for longitudinal free surface e...
  63. #4356 The DEEP DRILLER is loaded as shown in the Sample Load Form #1 (transit). What is the new metacentric height corrected for transverse free surface eff...
  64. #4357 The DEEP DRILLER is loaded as shown in the Sample Load Form #1 (Transit). What are the new vertical moments if the entire contents of Salt Water Balla...
  65. #4358 The DEEP DRILLER is loaded as shown in the Sample Load Form #1 (Transit). What are the new TM (transverse moments) if the entire contents of Salt Wate...
  66. #4359 In the DEEP DRILLER, VCG is obtained from the sum of the vertical moments by __________.
  67. #4360 The DEEP DRILLER is loaded as shown in Sample Load Form #4 (Drilling). What would be the new sum of FSML for Fresh Water if the entire contents of Dri...
  68. #4361 A semisubmersible 300 feet long and an LCF of 0 (amidships) is in transit with hulls awash and an MT1" of 87.67 foot-tons. Work on the BOP (weight 263...
  69. #4362 The DEEP DRILLER, loaded as shown in the Sample Load Form #4 (Drilling), discharges a non-liquid load of 275.8 long tons from a position 130 feet abov...
  70. #4363 The DEEP DRILLER, loaded as shown in the Sample Load Form #4 (Drilling), discharges a non-liquid load of 275.8 long tons from a position 130 feet abov...
  71. #4364 The DEEP DRILLER, loaded as shown in the Sample Load Form #4 (Drilling), discharges a non-liquid load of 275.8 long tons from a position 130 feet abov...
  72. #4365 The DEEP DRILLER, loaded as shown in the Sample Load Form #4 (Drilling), discharges a non-liquid load of 275.8 long tons from a position 130 feet abov...
  73. #4366 The DEEP DRILLER, loaded as shown in the Sample Load Form #4 (Drilling), discharges a non-liquid load of 275.8 long tons from a position 130 feet abov...
  74. #4367 The DEEP DRILLER, at 60.0 feet draft in sea water, has VM = 974,441 foot-long tons, LM = 40,301 foot-long tons, TM = 3 foot-long tons, FSML = 30,572 f...
  75. #4368 The DEEP DRILLER is loaded as shown in Sample Load Form #4 (Drilling). What would be the new sum of transverse moments for the Stores & Supplies (Tabl...
  76. #4369 What is the new location of the transverse center of gravity if 200 short tons are placed 10 feet to port of the centerline on a MODU with TCG 0.7 foo...
  77. #4370 What is the new location of the longitudinal center of gravity if 200 short tons are discharged from 30 feet forward of amidships on a MODU with LCG 1...
  78. #4371 What is the shift in the longitudinal center of gravity if 200 short tons are discharged from 30 feet forward of amidships on a MODU with LCG 1.5 feet...
  79. #4372 The transverse free surface correction of a floating MODU displacing 24,000 long tons is 1.0 foot. When the MODU is deballasted by discharging 8,000 l...
  80. #4373 The longitudinal free surface correction of a floating MODU displacing 12,000 kips is 1.20 feet. What would be the new FSCL if 2,400 kips of solid var...
  81. #4374 A semisubmersible, 200 feet in length between draft marks with the LCF 10 feet aft of amidships, records the following drafts: Port Forward 74'-09"; P...
  82. #4375 A semisubmersible, 200 feet in length between draft marks with the LCF 10 feet aft of amidships, records the following drafts: Port Forward 64'-09"; P...
  83. #4376 The righting moment created by a MODU that displaces 15,000 tons with a righting arm (GZ) of 0.02 foot is __________.
  84. #4377 A semisubmersible, with a TCG of 0.5 feet to port, displaces 20,000 long tons. Bulk, weighing 400 long tons, is discharged from P-tanks located 50 fee...
  85. #4378 A semisubmersible, with a TCG of 0.5 foot to port, displaces 20,000 long tons. Bulk, weighing 400 long tons, is loaded in P-tanks located 50 feet star...
  86. #4379 What is the longitudinal shift in the center of gravity if 200 short tons is moved ten feet to port and 30 feet forward on a MODU with a displacement...
  87. #4380 What is the transverse shift in the center of gravity if 200 short tons are placed 10 feet to port of the centerline on a MODU with TCG 0.7 foot starb...
  88. #4381 A semisubmersible, while floating level, displaces 20,000 long tons. LCB is 3.0 feet forward of amidships. Bulk, weighing 300 long tons, is placed in...
  89. #4382 A semisubmersible, while floating level, displaces 25,000 long tons. LCG is 2 feet forward of amidships. Bulk, weighing 300 long tons, is placed in P-...
  90. #4383 While loaded as shown in the DEEP DRILLER Sample Load Form #4 (Drilling), all of the liquid mud is dumped. What is the new location of the longitudina...
  91. #4384 While loaded as shown in the DEEP DRILLER Sample Load Form #4 (Drilling), all of the liquid mud is dumped. What is the new position of the longitudina...
  92. #4385 While loaded as shown in the DEEP DRILLER Sample Load Form #4 (Drilling), all of the liquid mud is dumped. What is the new longitudinal free surface c...
  93. #4386 What is the change in longitudinal moments for the DEEP DRILLER if 103.48 long-tons of ballast is transferred from a full ballast tank 1P to an empty...
  94. #4387 What is the decrease in longitudinal moments for the Deep Driller if 2.0 feet of ballast is transferred from 1S to 10P?
  95. #4388 The DEEP DRILLER has a KGT of 52.90 feet while at a draft of 58.0 feet. List is 2.0 feet to port. What is the value of TCG?
  96. #4389 The DEEP DRILLER is level at a draft of 58 feet when there are no environmental forces. What is the value of TCG?
  97. #4390 The DEEP DRILLER is level at a draft of 58 feet when there are no environmental forces. What is the value of LCG?
  98. #4391 What is the value of KML for the DEEP DRILLER at a draft of 60 feet?
  99. #4392 The DEEP DRILLER is loaded as shown in the Sample Load Form #3 (Preparing to Drill). If the liquid mud in mud pit #4 (see table 8) is dumped, what wou...
  100. #4393 The DEEP DRILLER is loaded as shown in Sample Load Form #3 (Preparing to Drill). If the liquid mud in mud pit #4 (see table 8) is dumped, what would b...

Deck General questions: what to expect

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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.

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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.