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Engine · 1,109 questions

Engineering Safety - USCG Exam Questions

Engine room safety: firefighting and fire prevention, confined space entry, pollution regulations, and safe work practices.

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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Questions 301–400 of 1,109 · page 4 of 12

  1. #407 Many uninspected motor vessels require load lines. For the purpose of the Load Line Regulations, the term 'surveyor' means __________.
  2. #408 With no environmental forces acting on the vessel, the center of gravity of an inclined vessel is vertically aligned with the __________.
  3. #409 A vessel's center of gravity is lowered when the __________.
  4. #410 The important stability parameter 'KG' is defined as the __________.
  5. #412 When a vessel is inclined, the tendency for it to return to its original position is caused by the __________.
  6. #413 The center of volume of the immersed portion of the vessel is the __________.
  7. #414 The water in which a vessel floats provides vertical upward support. The point through which this support is assumed to act is known as the center of...
  8. #415 Which abbreviation represents the height of the center of buoyancy?
  9. #416 A vessel trimmed down by the bow has __________.
  10. #417 The tendency of a ship to resist a change in trim is __________.
  11. #418 In the absence of external forces, adding weight to one side of a floating vessel, will cause the vessel to __________.
  12. #420 If a vessel rolls to the starboard side, and there are no movable or moving weights onboard, the center of gravity will __________.
  13. #421 You may improve a vessel's stability by __________.
  14. #422 Increasing the free surface of a confined liquid has the effect of raising the __________.
  15. #423 Excessive free surface occurring in tanks carrying liquid cargo should be avoided in order to __________.
  16. #424 Adverse effects due to free surface will result when __________.
  17. #425 A vessel which is subjected to 'hogging' __________.
  18. #426 A vessel having a concentration of weight toward the top of the vessel is said to be __________.
  19. #427 What is the usual effect of moving weight from low in the vessel to above the main deck?
  20. #429 The horizontal fore and aft movement of a vessel is called __________.
  21. #430 The vertical motion of a floating vessel is known as __________.
  22. #431 The angular movement of a vessel about a horizontal line drawn from its bow to its stern is __________.
  23. #432 Pitching is the rising and falling motion of the bow of a ship oscillating about which axis?
  24. #433 In a compartment that has been completely flooded, the greatest pressure will be exerted __________.
  25. #436 A flat block placed under the end of a shore for the purpose of distributing pressure is referred to as a __________.
  26. #438 After measuring the length to which a section of shoring should be cut, you should cut the shoring __________.
  27. #439 Wooden shoring is used in shipboard damage control to __________.
  28. #440 After an emergency shoring installation has been completed, the __________.
  29. #442 An acceptable method of temporarily sealing a crack formed in the hull of a vessel is to __________.
  30. #443 It is generally not advisable to drive a wedge into a crack occurring in the hull because wedges __________.
  31. #444 The wooden plug fitted tightly in the vent of a damaged tank may prevent the tank from __________.
  32. #446 The bypass valve on a self-contained breathing apparatus (SCBA) bypasses __________.
  33. #448 Which of the following conditions represents a particular advantage of using a positive pressure type self-contained breathing apparatus in an atmosph...
  34. #450 Which of the following limitations is correct regarding gas or filter masks?
  35. #451 A rigid lifesaving device designed for a group of survivors to hold on to while in the water is defined as a _______.
  36. #455 You are involved in an emergency landing of a helicopter on the water. You should inflate your life jacket __________.
  37. #456 The external flotation bladder on an immersion suit should be inflated __________.
  38. #457 Which of the following statements is true concerning an immersion suit and its use?
  39. #459 Which of the following is required to be included in the fireman's (emergency) outfit?
  40. #461 The hand brake of a lifeboat winch is __________.
  41. #463 When lowering lifeboats as the vessel is pitching in heavy seas, a good practice is to rig frapping lines __________.
  42. #464 The purpose of the wire stretched between the lifeboat davit heads is to __________.
  43. #465 Your vessel is equipped with totally enclosed lifeboats. Which of the following statements is correct should the boat be enveloped in flames?
  44. #466 In heavy seas the helmsman should steer the survival craft __________.
  45. #467 When the survival craft is supplied with bottles of compressed air, they are used for __________.
  46. #468 While retrieving the survival craft, the engine should be stopped __________.
  47. #469 To activate an air regeneration canister on a survival craft, you __________.
  48. #470 When inspecting a survival craft, you should check to make sure that the __________.
  49. #471 When collecting condensation for drinking water, __________.
  50. #472 The survival craft engine is fueled with __________.
  51. #473 Who is responsible for lowering the survival craft?
  52. #474 When launching an inflatable life raft, you should make sure that the operating cord is __________.
  53. #475 When personnel are lifted by a helicopter from an inflatable life raft, the personnel on the raft should __________.
  54. #477 While adrift in an inflatable life raft in hot, tropical weather __________.
  55. #478 The most important reason for taking anti-seasickness pills as soon as possible after entering a life raft is to __________.
  56. #479 You are at sea in an inflatable life raft. In high latitudes, the greatest danger is __________.
  57. #480 The canopy of your life raft should __________.
  58. #481 Using a sea anchor when in a life raft will __________.
  59. #482 The painter on a rigid life raft must have a length sufficient to reach the highest waterline plus an additional __________.
  60. #483 The sea painter on a rescue boat should be led __________.
  61. #484 Which of the following conditions represents the appropriate time for setting off distress flares and rockets?
  62. #485 Each vessel in ocean and coastwise service must have an approved EPIRB. An EPIRB __________.
  63. #486 You have abandoned ship and after two days in a life raft you can see an aircraft near the horizon apparently carrying out a search pattern. You shoul...
  64. #487 A burning mattress is considered as which of the following classes of fire?
  65. #488 A fire in a pile of dunnage would be classified as a __________.
  66. #489 A fire involving trash and paper waste would be classified as a __________.
  67. #490 A fire that has developed in a pile of rubber gasket material would be classified as a __________.
  68. #491 Which of the fire extinguishing agents listed can be used to effectively combat a class B fire?
  69. #492 The class of fire on which a blanketing effect is essential to extinguish the fire is __________.
  70. #493 Which of the listed classes of fire would most likely occur in the engine room of a vessel?
  71. #495 To fight a class "C" fire, you should use carbon dioxide or __________.
  72. #496 Which of the hazards listed is of a primary concern, other than fire damage, associated with a class C fire?
  73. #497 When combating a class C fire, which of the following dangers may be present?
  74. #498 A class "D" fire would involve the burning of __________.
  75. #499 A magnesium fire would be classified as a __________.
  76. #500 Which of the following procedures reduces the possibility of an interior ventilation duct fire from rapidly spreading?
  77. #501 Paints and solvents used aboard a vessel should be __________.
  78. #504 Good housekeeping on a vessel prevents fires by __________.
  79. #505 The most likely location for a liquid cargo fire to occur on a tanker would be __________.
  80. #506 In accordance with 46 CFR Part 109, the Muster List ("Station Bill") shows each crew lifeboat station, their duties during abandonment, basic instruct...
  81. #508 In a typical automatic fire alarm system, all zone circuits are always connected __________.
  82. #509 Fire detecting systems on merchant vessels may be arranged to sense __________.
  83. #510 You are part of a search team and have been told that the last sighting of the wiper was next to the fire pump(s). What is the location of the fire pu... illustration
  84. #512 On the illustrated fire control plan of the lower engine room, the arrow between frames 135 and 140 represents what? Illustration SF-0046 illustration
  85. #513 What safety information can be found in the fire control plan that is posted or available in booklet form on your ship?
  86. #514 According to Coast Guard Regulations (46 CFR), the fuel tanks of motor-propelled lifeboats shall be __________.
  87. #515 The device used for preventing the passage of flames into enclosed spaces is called a __________.
  88. #518 Which statement is TRUE concerning life jackets which are severely damaged?
  89. #520 According to 46 CFR Part 76, which of the following statements is true regarding sprinkler heads which are normally activated by the melting of a fusi...
  90. #521 The size of the fire hydrant hose connections must be either 1 1/2 inches or __________.
  91. #522 Fire main outlet valves or hydrants located on exposed decks shall be __________.
  92. #523 Which of the following statements represents the Coast Guard Regulations (46 CFR) applicable to the equipment required in a fireman's outfit?
  93. #524 The lifeline which is part of a fireman's outfit must be __________.
  94. #525 Where multiple fire pumps are installed, they may be used for other purposes, provided that one pump is __________.
  95. #526 Coast Guard Regulations (46 CFR) require how many 15 pound carbon dioxide fire extinguishers to be installed in the boiler room of an 8,000 horsepower...
  96. #528 If a fixed fire extinguishing system is installed on any vessel, it must be of a type approved by the __________.
  97. #529 When fire detecting systems, fire extinguishing systems, and associated equipment are not required by the Coast Guard but are installed on a cargo ves...
  98. #530 According to 46 CFR Part 95, which of the following statements is FALSE concerning the regulations pertaining to the carbon dioxide cylinder room for...
  99. #531 The carbon dioxide cylinders of a fixed fire extinguishing system may be located inside the protected space if the quantity of CO2 required to protect...
  100. #532 Coast Guard Regulations (46 CFR Part 34) state that any space containing charged CO2 cylinders, shall be properly ventilated to prevent a temperature...

Engineering Safety questions: what to expect

Q How many Engineering Safety questions are in the Engine pool?

There are 1,109 Engineering Safety 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 Engineering Safety module from the same pool.

Q What score do I need to pass the Engineering Safety module?

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

Q Are these the real USCG Engineering Safety 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 Engine question pool

The Engine pool holds the current U.S. Coast Guard questions for engineering credentials, from QMED ratings through DDE and Assistant Engineer up to Chief. Answer any question to see the correct choice instantly.