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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 4,301–4,400 of 5,775 · page 44 of 58

  1. #4495 The COASTAL DRILLER, in transit during a severe storm while at a draft of 9 feet 6 inches, has a KGT of 39.1 feet and a KGL of 39.9 feet. The margin o...
  2. #4497 In general, a reinforced vessel can safely navigate in ice provided the concentration does not exceed how many tenths?
  3. #4498 What form of ice is of land origin?
  4. #4499 The free surface effects of a partially full liquid tank decrease with increased __________.
  5. #4500 Considering the changes to lightweight shown in section 5 of the COASTAL DRILLER Manual, the maximum allowable combination of hook, rotary, and setbac...
  6. #4501 Your vessel is being assisted through an ice field in Thunder Bay by the Canadian Coast Guard icebreaker Alexander Henry. The starboard lookout report...
  7. #4502 A U.S. Coast Guard icebreaker, while escorting ships in ice, may sound four short and one long blasts on the whistle to indicate that the icebreaker _...
  8. #4504 Which statement is TRUE with respect to shiphandling procedures in ice?
  9. #4505 Your ship is navigating independently in heavy ice when it becomes beset. Which statement is FALSE?
  10. #4506 Commercial ships or other persons or agencies requiring the assistance of Canadian Coast Guard icebreakers should first contact __________.
  11. #4507 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?
  12. #4508 An elevated jack-up weighs 14,000 kips. Its TCG is located 1.0 foot to starboard of the centerline. What would be the new TCG for the jack-up if the d...
  13. #4509 A MODU displacing 30,500 long tons has a KG of 60 feet. A weight of 500 long tons is discharged from a VCG of 150 feet. What is the change in KG?
  14. #4510 Which statement concerning the navigation of a vessel in ice is FALSE?
  15. #4511 How does an icebreaker normally free a ship which has become beset while navigating independently?
  16. #4512 A U.S. Coast Guard icebreaker may use all of the following distinctive lights when escorting ships in ice EXCEPT __________.
  17. #4513 Which publication would give detailed information on the commercial vessel traffic reporting system for connecting waters from Lake Erie to Lake Huron...
  18. #4514 A jack-up 210 feet in length is level during transit. The LCF is 140 feet aft of the bow. How much weight should be applied at the bow to level the ja...
  19. #4515 A vessel which is being assisted by an icebreaker should indicate that she is ready to cast off the towline by __________.
  20. #4516 What is NOT a form used by ice support services to disseminate information?
  21. #4517 In the COASTAL DRILLER, TCG is obtained from the sum of the transverse moments by __________.
  22. #4518 Snow has obliterated surface features and the sky is covered with uniform, altostratus clouds. There are no shadows and the horizon has disappeared. W...
  23. #4519 What is the trim of a jack-up with forward draft of 11 feet and aft draft of 13.75 feet?
  24. #4520 Before entering an ice area, the ship should be __________.
  25. #4521 For operations in pack ice, a vessel should __________.
  26. #4522 The COASTAL DRILLER, in ocean transit at a draft of 10 feet 6 inches with winds less than 70 knots, has a KGT of 50.6 feet and a KGL of 51.4 feet. The...
  27. #4523 Ice concentration is measured in tenths. What concentration range of ice corresponds to "Open Pack"?
  28. #4524 Ice concentration is measured in tenths. What concentration range of ice corresponds to 1- 3 tenths?
  29. #4525 The COASTAL DRILLER is loaded as shown in the Sample Load Form Number 1 (Rig Move). If the contents of the No.7 drill water tank are discharged, what...
  30. #4526 How much drill water should be transferred from tanks 23 and 24 to tank 1 to level the COASTAL DRILLER, in transit at a draft of 10 feet 6 inches, if...
  31. #4527 Because there is a possibility of fuel oil being discharged overboard from a full fuel oil tank, it is decided to transfer 25 kips from tank 14 to tan...
  32. #4528 In general, an un-reinforced vessel can safely navigate in ice provided the concentration does not exceed how many tenths?
  33. #4529 Which is NOT a potential hazard of approaching close to an iceberg?
  34. #4531 When underway at a draft of 10.5 feet in a severe storm, the COASTAL DRILLER has a maximum allowed KG of __________.
  35. #4532 What should NOT be used as an indicator that ice may be nearby?
  36. #4533 Small floes of rough, hummocky sea ice capable of damaging a vessel __________.
  37. #4534 What is NOT an indication that pack ice may be nearby?
  38. #4535 During a period of "whiteout", you should expect which of the following?
  39. #4536 In polar regions you should NOT expect to see __________.
  40. #4537 A jack-up, while level in transit at 10 feet draft, experiences a wind gust which results in a port draft of 11 feet. What is the new starboard draft?
  41. #4538 A jack-up, while level in transit at 10 feet draft, experiences a wind gust which results in a starboard draft of 11 feet 6 inches. What is the heel?
  42. #4539 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?
  43. #4540 Which type of ice is a hazard to navigation?
  44. #4541 An elevated jack-up weighs 14,000 kips. The drill floor, weighing 700 kips, is skidded 10.0 feet to starboard. The change in TCG is __________.
  45. #4542 A jack-up, 180 feet in length, has the center of flotation at 110 feet aft of frame zero. The draft at the bow is 11.0 feet and the draft at the stern...
  46. #4543 A jack-up 180 feet in length with the LCF at 120 feet AF0 has a true mean draft (draft at LCF) of 10 feet. If the trim is 3 feet by the stern, what is...
  47. #4544 A jack-up 180 feet in length with the LCF at 120 feet AFO has a true mean draft (draft at LCF) of 10 feet. If the trim is 3 feet by the stern, what is...
  48. #4545 The draft at the forward draft mark of a jack-up is 11 feet 3 inches while the draft at the aft draft mark is 12 feet 9 inches. The value of trim is _...
  49. #4546 A jack-up has 8 inches of trim by the stern. Calculations show that the moment required to change trim one inch is 500 foot-kips. To level the unit, h...
  50. #4547 A jack-up 180 feet in length with the LCF at 120 feet AFO has a draft of 8 feet at the bow and 11 feet at the stern. What is the trim by the stern?
  51. #4548 A jack-up level at 12.5 feet draft transfers 100 kips of drill water from a tank with a TCG of -30 feet to a starboard tank with a TCG of 70 feet. The...
  52. #4550 A jack-up 210 feet in length is level during transit. The LCF is 140 feet aft of the bow. How much weight should be applied at the stern to re-level t...
  53. #4551 An elevated jack-up weighs 17,000 kips. Its center of gravity is located 110 feet aft of frame zero (AF0). What would be the new LCG if the cantilever...
  54. #4552 A floating jack-up with displacement of 15,000 kips has its LCG 108 feet aft of frame zero (AFO). If 400 kips are loaded at 120 feet AFO and 800 kips...
  55. #4553 For a MODU with list, a decrease in GM will cause the angle of inclination to __________.
  56. #4554 A floating jack-up with displacement of 15,000 kips has its LCG 106 feet aft of frame zero (AF0). If 200 short tons are loaded at 20 feet AF0 and 400...
  57. #4555 A floating jack-up with displacement of 16,200 kips has its LCG 110.37 feet aft of frame zero (AF0). If 200 short tons are discharged from 120 feet AF...
  58. #4556 How much drill water is required for transfer between drill water tanks 25 and 26 in order to correct the list of the COASTAL DRILLER with total trans...
  59. #4557 What is the change in longitudinal moments for the Coastal Driller if 2.0 feet of drill water is transferred from a full drill water tank 23 to an emp...
  60. #4558 A floating MODU displacing 20,000 long tons with a VCG of 50 feet loads 100 long tons at 100 feet above the baseline and 200 long tons at 130 feet abo...
  61. #4559 What is the change in longitudinal moments for the Coastal Driller if 2.0 feet of drill water is transferred from a full drill water tank 23 to an emp...
  62. #4560 What is the increase in transverse moments for the Coastal Driller if 2.0 feet of drill water is transferred from a full drill water tank 23 to an emp...
  63. #4561 What is the increase in transverse free surface moments for the COASTAL DRILLER if 2.0 feet of drill water is transferred from a full drill water tank...
  64. #4562 The COASTAL DRILLER is loaded as shown in the Sample Load Form Number 1 (Rig Move). If the contents of the No.1 drill water tank are discharged, what...
  65. #4563 What is the change in longitudinal moments for the Coastal Driller if 2.5 feet of drill water is discharged from drill water tank 23?
  66. #4564 Because there is a possibility of fuel oil being discharged overboard from a full fuel oil tank, it is decided to transfer 25 kips from tank 14 to tan...
  67. #4565 A semisubmersible with a displacement of 20,000 long tons and a KG of 52 feet discharges 300 long tons of barite from P-tanks located 120 feet above t...
  68. #4566 The COASTAL DRILLER is in transit at the load line draft. It discharges 279.93 kips of weight. The new draft is __________.
  69. #4567 The COASTAL DRILLER is in transit at a draft of 10.0 feet. It loads 216.43 kips of weight aboard. What is the new draft?
  70. #4568 The COASTAL DRILLER has a change of trim by the head of 2.0 feet. What is the change of draft at the forward draft marks?
  71. #4569 The number of kips necessary to change the true mean draft of a MODU one inch is known as __________.
  72. #4570 For a MODU with trim, a decrease in GMT will cause the angle of inclination to __________.
  73. #4571 The COASTAL DRILLER has a trim of 2.13 feet by the stern. The draft at the forward draft marks is observed to be 8.0 feet. The draft at the center of...
  74. #4572 The COASTAL DRILLER has a trim of 2.13 feet by the stern. If the draft at the forward draft marks is 8.0 feet, the draft at the after draft marks is _...
  75. #4573 What is the change in transverse moments for the Coastal Driller if 2.5 feet of drill water is discharged from drill water tank 23?
  76. #4574 The COASTAL DRILLER, with no trim, is at a true mean draft of 10 feet and 10 inches. TM is -6,800 ft-kips. Using only tanks 1, 25, and 26, how many ki...
  77. #4575 The COASTAL DRILLER, with no list, is at a true mean draft of 10 feet and 10 inches. LM is 1,699,463 ft-kips. Using only tanks 1, 25, and 26, how many...
  78. #4576 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...
  79. #4577 When a wind force causes a floating MODU to heel to a static angle, the __________.
  80. #4578 A MODU lists and trims about the __________.
  81. #4579 Weights added or discharged at the center of flotation on the COASTAL DRILLER while floating will change the __________.
  82. #4580 The rotary of the COASTAL DRILLER is located 38 feet aft of transom and 6 feet to starboard of the centerline. With the changes to lightweight shown i...
  83. #4581 Considering the changes to lightweight shown in Section 5 of the COASTAL DRILLER Manual, with the rotary 36 feet aft of the transom and 4 feet to port...
  84. #4583 On the COASTAL DRILLER, placing the rotary 34 feet aft of the transom and two feet to starboard of the centerline, limits the maximum hook load to ___...
  85. #4584 Considering the lightweight changes to the COASTAL DRILLER, what is the maximum permitted hook load permitted when 450 kips are in the setback and 200...
  86. #4585 On the COASTAL DRILLER, hook load includes the weight of the __________.
  87. #4586 Drilling loads on the COASTAL DRILLER are the combined loads arising from conductor tension, rotary, hook, and __________.
  88. #4587 The rotary of the COASTAL DRILLER is located 36 feet aft of the transom and 6 feet to starboard of the centerline. The hook load is 300 kips. Consider...
  89. #4588 When the COASTAL DRILLER is loaded as shown in the sample load form Number 3 (drilling), the hook load is placed in the pipe racks. What would be the...
  90. #4589 While in ocean transit at a draft of 10 feet, the Coastal Driller has a maximum allowed KG of __________.
  91. #4590 The COASTAL DRILLER, in ocean transit at a draft of 10 feet 6 inches with winds greater than 70 knots, has a KGT of 38.7 feet and a KGL of 38.2 feet....
  92. #4591 The COASTAL DRILLER, in field transit at a draft of 10 feet 0 inches with winds less than 70 knots, has a KGT of 39.0 feet and a KGL of 38.6 feet. The...
  93. #4592 The COASTAL DRILLER, in ocean transit at a draft of 10 feet 0 inches with winds greater than 70 knots, has a KGT of 39.0 feet and a KGL of 38.6 feet....
  94. #4593 While the COASTAL DRILLER is in transit at a draft of 10 feet 6 inches, a severe storm is predicted within 12 hours. VM are 541,257 ft-kips, FSML are...
  95. #4594 While the COASTAL DRILLER is in transit at a draft of 10 feet 6 inches, a severe storm is predicted within 12 hours. VM are 520,462 ft-kips, FSML are...
  96. #4595 While the COASTAL DRILLER is in transit at a draft of 10 feet 6 inches, a severe storm is predicted within 12 hours. VM are 546,462 ft-kips, FSML are...
  97. #4596 While the COASTAL DRILLER is in transit at a draft of 10 feet 6 inches, a severe storm is predicted within 12 hours. GMT is 98.89 feet. How much shoul...
  98. #4597 The COASTAL DRILLER is loaded as shown in Sample Load Form Number 3 (Rig Move). What would be the new sum of vertical moments for the liquid variables...
  99. #4598 The COASTAL DRILLER is loaded as shown in the Sample Load Form Number 1 (Rig Move). If the contents of 6 and 7 drill water tanks are discharged, what...
  100. #4599 The COASTAL DRILLER is loaded as shown in the Sample Load Form Number 1 (Rig Move). If the contents of 6 and 7 drill water tanks are discharged, what...

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.