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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 3,301–3,400 of 5,775 · page 34 of 58

  1. #3472 An obstruction on a helodeck is any object that might present a hazard to the __________.
  2. #3473 The length of chain between the anchor and the end of the pendant line is called the __________.
  3. #3474 The unit used to measure anchor line tensions in the offshore drilling industry is the __________.
  4. #3475 A shepherd's crook is used to __________.
  5. #3476 An ideal mooring system would be __________.
  6. #3477 The safest device used to secure the end of the pendant wire when it is initially passed to the anchor handling vessel is a __________.
  7. #3478 The design of a spring buoy helps __________.
  8. #3479 A mooring system that results in a spread system without anchor buoys is called a __________.
  9. #3480 The sprocket teeth on a wildcat are known as the __________.
  10. #3481 The machinery associated with heaving in and running out anchor chain is the __________.
  11. #3482 A common means of connecting shots of anchor chain in the field is to use a(an) __________.
  12. #3483 What line receives the hardest service in the mooring system?
  13. #3484 What is the advantage of a single streamlined fluke anchor over a double fluked anchor of similar weight?
  14. #3485 Increasing the area of the anchor flukes will __________.
  15. #3486 The fluke angle of an anchor system is the angle between the __________.
  16. #3487 A chain stripper is used to __________.
  17. #3488 What is the most important difference between the bow type anchor shackle and the D-type anchor shackle?
  18. #3489 What is the bow type anchor shackle primarily used for?
  19. #3490 Most large anchors are manufactured with a __________.
  20. #3491 When a combination chain and wire rope mooring line is used, the chain is deployed __________.
  21. #3492 In a combination chain and wire rope mooring system, the anchor chain is deployed at the anchor end of the line to __________.
  22. #3493 In a combination chain and wire rope mooring system, the chain is deployed at the anchor end of the line to __________.
  23. #3494 Which two components pass through the shank of an LWT anchor?
  24. #3495 Connecting elements of a mooring system should be fabricated from __________.
  25. #3496 Which problem is virtually impossible to detect during an in-service inspection of used mooring chain?
  26. #3497 Thirty-five percent of the breaking strength of an anchor cable is generally accepted as the __________.
  27. #3498 What percentage of the breaking strength is the generally accepted safe operating load of an anchor cable?
  28. #3499 The only wire rope termination which may be made in the field is __________.
  29. #3500 A common class of wire rope used for mooring is the 6x19 class. What does the 6 represent?
  30. #3501 A common class of wire rope used for mooring is the 6x37 class. What does the 37 represent?
  31. #3502 What is an advantage of the 6x19 class of wire rope over the 6x37 class of wire rope of the same diameter?
  32. #3503 What is an advantage of the 6x37 class of wire rope over the 6x19 class of wire rope of the same diameter?
  33. #3504 Where do fatigue failures of wire rope mooring lines usually occur?
  34. #3505 In a wire rope mooring system, the fairlead sheave should be a minimum of __________.
  35. #3506 What happens to the pulling power of a winch when retrieving wire rope?
  36. #3507 The load chart of a MODU crane enables the operator to combine the load radius with boom length to determine the __________.
  37. #3508 On a MODU crane, the boom indicator tells the operator what the boom angle is compared to the __________.
  38. #3509 The boom stops are installed on an offshore crane to __________.
  39. #3510 While off-loading from an offshore supply vessel with the crane, the wind increases in strength and changes direction significantly, you should ______...
  40. #3511 Prior to backloading portable tanks or drums onto an offshore supply vessel, check that each tank is __________.
  41. #3512 When lifting loads from a boat in heavy weather, the load should be taken when the boat __________.
  42. #3513 When loading or discharging dry mud or cement, crew members should use goggles and __________.
  43. #3514 When loading or discharging dry mud or cement, crew members should use facial respirator masks and __________.
  44. #3515 A The construction portfolio may be included as part of the MODU __________.
  45. #3516 The person on a MODU who is responsible for maintaining the engineering spaces in a clean and sanitary condition is the __________.
  46. #3517 Load line regulations are designed to insure that a MODU has adequate structural strength and sufficient __________.
  47. #3518 On offshore drilling units, the Muster List ("Station Bill") must be posted in conspicuous locations and signed by the __________.
  48. #3519 On offshore drilling units fitted with CO2 systems, each space that contains a cylinder must be vented and designed to keep temperature in the space a...
  49. #3520 The required portable radio shall be stored in the proper location and be __________.
  50. #3521 Each hose in the fuel transfer system for helicopter refueling must have a __________.
  51. #3522 How long shall the Master or person in charge of a MODU maintaining an unofficial logbook retain this logbook on board?
  52. #3523 Which record must be retained on board after a report of casualty to a MODU?
  53. #3524 Each hand portable, semi-portable and fixed fire extinguishing unit on a MODU must be tested and inspected at least once every __________.
  54. #3525 Control valves of a CO2 system may be located within the protected space when __________.
  55. #3526 Each fire hose coupling on a MODU must have threads that meet the specifications of the __________.
  56. #3527 The number of certificated able seamen and lifeboatmen required on a MODU is stated in the __________.
  57. #3528 On a MODU, each emergency generator must be tested at least once each __________.
  58. #3529 A person who holds a foreign credential can serve as the ballast control operator to meet manning requirements on a MODU, on waters outside U.S. juris...
  59. #3530 The helicopter deck of a MODU must be marked with the units identification, appropriate aiming circles, and a continuous line on the perimeter which i...
  60. #3531 The design specifications for cranes and crane foundations on MODU's are set and published by the __________.
  61. #3532 The Master or person in charge of a MODU is required to submit a casualty report of an intentional grounding when it __________.
  62. #3533 On Offshore Drilling units, in addition to the life jackets stowed at each berth location, life jackets must be stowed at each work station and ______...
  63. #3534 The Master or person in charge of a mobile offshore drilling unit shall ensure the crane record book shows __________.
  64. #3535 How wide must the safety net be that is required on the unprotected perimeter of the helicopter landing deck on a MODU?
  65. #3536 On inspected cargo vessels, each fire station is required to be fitted with a hose which has a nominal diameter of __________.
  66. #3537 On offshore drilling units, the EPIRB on board is required to be tested __________.
  67. #3538 A MODU which is required to carry an Oil Record Book must log in the book __________.
  68. #3539 A written report of casualty to a MODU shall be made __________.
  69. #3540 What is the minimum required number of ring life buoys on a MODU?
  70. #3541 On a MODU, where Must the fire control plan be posted?
  71. #3542 On offshore drilling units, all lifeboats are required to be marked with the __________.
  72. #3543 Semi-portable extinguishers used on MODU's are sizes __________.
  73. #3544 Mobile offshore drilling units not required to have an official logbook shall __________.
  74. #3545 Where must you record the date of each emergency training drill conducted on a MODU?
  75. #3546 A MODU must have a self-contained breathing apparatus to be used as protection from gas leaking from a refrigeration unit. To meet this requirement, y...
  76. #3547 A For MODU's operating under the U.S. flag, the construction portfolio must contain __________.
  77. #3548 Prior to getting underway in fresh or brackish water, the Master must __________.
  78. #3549 On a MODU, firefighting equipment must be inspected once every __________.
  79. #3550 A mobile offshore drilling unit crane certificate is required to be maintained __________.
  80. #3551 Diesel powered industrial trucks on a MODU that are provided with safeguards to the exhaust, fuel, and electrical systems are designated __________.
  81. #3552 Where must the Master or person in charge of a MODU record the date of each test of emergency lighting and power systems and the condition and perform...
  82. #3553 How often must the emergency generator be tested on a mobile offshore drilling unit?
  83. #3554 A record of the types and strengths of steels used on a MODU must be included in the __________.
  84. #3555 Each emergency generator on a mobile offshore drilling unit, when tested, must be run under a full load for at least __________.
  85. #3556 On offshore drilling units fitted with fixed CO2 systems, the system must discharge at least 85 percent of the required amount of CO2 within _________...
  86. #3557 Your fireman's outfit includes a(n) __________.
  87. #3558 When must the Master of a vessel log the position of load line marks in relation to the surface of the water in the Official Logbook?
  88. #3559 On offshore drilling units each fire station is identified by letters and numbers at least __________.
  89. #3560 The Master or person in charge of a MODU shall ensure the crane record book shows the __________.
  90. #3561 Each ventilation system for an enclosed classified location on a MODU must provide a complete change of air every __________.
  91. #3562 The stamped full weight of a 100 lb. CO2 bottle is 314 lbs. What is the minimum weight of the bottle before it has to be recharged?
  92. #3563 A weathertight door on a MODU must not allow water to penetrate into the unit in __________.
  93. #3564 On surface type offshore drilling units, each survival craft must be capable of being launched to the water at the minimum operating draft, under unfa...
  94. #3565 Each liferaft, which does not have an indicated maximum stowage height indicated on the liferaft, must be __________.
  95. #3566 The signal for fire alarm on a MODU must be indicated __________.
  96. #3567 In the case of a casualty involving a MODU, the Master, owner, agent or person in charge shall make the records required by regulation available upon...
  97. #3568 A The requirements for special welding procedures on a MODU must be contained in the __________.
  98. #3569 The litter on a MODU must be able to __________.
  99. #3570 The light on a life jacket must be replaced __________.
  100. #3571 On a mobile offshore drilling unit it is required to __________.

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.