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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 401–500 of 1,109 · page 5 of 12

  1. #533 In accordance with Coast Guard Regulations (46 CFR), which of the following power sources would be acceptable for the carbon dioxide warning alarm?
  2. #534 The empty weight of a '100 pound' cylinder in a fixed CO2 fire extinguishing system is 130 pounds. What is the minimum acceptable weight of the cylind...
  3. #535 According to 46 CFR Part 147, a cylinder used for storing CO2 in a fixed firefighting system must be hydrostatically retested and restamped every ____...
  4. #536 How often must fixed CO2 fire extinguishing systems be inspected to confirm the cylinders are within 10% of the stamped full charge weight?
  5. #537 In accordance with 46 CFR Part 95, in a fixed CO2 fire extinguishing system, where provision is made for the release of CO2 by the operation of a remo...
  6. #538 A safety outlet is provided on the CO2 discharge piping to prevent __________.
  7. #539 Coast Guard Regulations (46 CFR), require a fixed foam extinguishing system on cargo and miscellaneous vessels to meet which of the following requirem...
  8. #540 When the machinery spaces on a tank vessel are protected by a fixed foam extinguishing system, what additional protection is required by Coast Guard R...
  9. #541 Coast Guard Regulations (46 CFR) state that where reasonable and practicable, the steam pressure in a steam smothering system should be at least _____...
  10. #542 Each completed page of the Oil Record Book must be signed by the __________.
  11. #543 The Federal Pollution Prevention Regulations (33 CFR) that apply to ships are enforced by the __________.
  12. #544 According to Pollution Prevention Regulations (33 CFR), the "Discharge of Oil Prohibited" placard is required on all __________.
  13. #546 If a vessel moored at a U.S. terminal does not comply with Coast Guard Pollution Prevention Regulations (33 CFR), it may be detained by the __________...
  14. #547 Exemption or partial exemption from compliance with any requirement in the Oil or Hazardous Material Pollution Prevention Regulations prescribed in (3...
  15. #548 Where are "prohibited oil spaces" specified in the Pollution Prevention Regulations (33 CFR)?
  16. #550 The term "oil", as used in the Pollution Prevention Regulations (33 CFR), means __________.
  17. #551 The term "oily mixture", as defined in the Pollution Prevention Regulations (33 CFR) includes __________.
  18. #552 The term "discharge", as it applies to the pollution regulations, means __________.
  19. #553 Ocean vessel Ballast Water Management Regulations can be found in __________.
  20. #554 To be in compliance with U.S. Federal Ballast Water Management regulations, which of the following procedures may be followed by an ocean vessel enter...
  21. #556 According to Code of Federal Regulations 33, a vessel operating upon the Great Lakes shall __________.
  22. #557 When off loading garbage to another ship, your records must identify that ship by name and __________.
  23. #558 Which CFR regulation identifies the placard to be posted on the vessel describing the proper disposal of garbage?
  24. #559 According to Code of Federal Regulations (33 CFR 151), who is responsible for insuring that a ship is not operated unless a waste management plan is u...
  25. #562 Bilges may be pumped __________.
  26. #564 Which of the following operations aboard a tanker must be recorded in the Oil Record Book on a tank-to-tank basis according to Coast Guard Regulations...
  27. #565 According to the Pollution Prevention Regulations (33 CFR), who makes the final decision of when oil transfer may begin?
  28. #566 According to the Pollution Prevention Regulations (33 CFR), no person may transfer oil to or from a vessel unless each person in charge has signed the...
  29. #569 The Coast Guard Pollution Prevention Regulations (33 CFR) require a meeting before starting any oil transfer operation. That meeting must be between t...
  30. #570 According to the Pollution Prevention Regulations (33 CFR), who is to make the final decision of when oil transfer may begin?
  31. #571 According to 46 CFR, Part 30, a Grade "E" petroleum product is __________.
  32. #572 According to Coast Guard Regulations (46 CFR), no vessel can come alongside or remain alongside a tank vessel while it is loading A, B, or C grade car...
  33. #573 Which of the following is NOT a MARPOL, Annex V, Special Area?
  34. #574 According to MARPOL, the definition of oil does NOT include __________.
  35. #575 Which of the circumstances listed is an exception to the garbage discharge requirements in Annex V to MARPOL 73/78?
  36. #576 According to MARPOL, the definition of medical waste does NOT include __________.
  37. #579 Annual servicing of a hand portable CO2 fire extinguisher includes __________.
  38. #580 A hand portable CO2 fire extinguisher is effective on burning oil only __________.
  39. #581 In a cartridge-operated dry chemical type fire extinguisher, when the CO2 cartridge is activated, the dry chemical is released from the extinguisher _...
  40. #582 Recharging a previously used cartridge-operated dry chemical fire extinguisher is accomplished by __________.
  41. #584 Which fire extinguisher is most prone to freezing when stowed in low temperatures?
  42. #585 Which of the following statements is true concerning Halon 1301 fire extinguishing equipment?
  43. #594 While reviewing emergency response plans onboard your vessel, you have questions regarding the response for damage control conditions and the ship's c...
  44. #597 Wooden shoring, with a cross-sectional dimension of 4" X 4" should not be longer than __________.
  45. #599 Following a grounding, you can best determine that a SLACK fuel oil tank has been holed by __________.
  46. #600 While maneuvering up the East River your vessel runs aground. As the Chief Engineer of the vessel how would you proceed?
  47. #601 Your vessel has run aground and upon taking fuel oil tank soundings, you find that a fuel tank level has increased. You therefore should suspect _____...
  48. #602 An acceptable method of temporarily sealing a crack formed in the hull of a vessel is to __________.
  49. #603 It is generally not advisable to drive a wedge into a crack occurring in the hull because wedges __________.
  50. #604 The wooden plug fitted tightly in the vent of a damaged tank may prevent the tank from __________.
  51. #605 In a compartment that has been completely flooded with water, the greatest pressure will be exerted __________.
  52. #606 Progressive flooding in the engine room may be minimized by securing watertight boundaries and __________.
  53. #607 Your ship has run aground and it is necessary to determine whether or not a compartment has flooded. Therefore, you should __________.
  54. #609 What is a major advantage of using a positive pressure type self-contained breathing apparatus?
  55. #611 The safe and efficient use of the face piece of a self-contained breathing apparatus is directly influenced by __________.
  56. #617 You are involved in an emergency landing of a helicopter on the water. You should inflate your life jacket __________.
  57. #618 A rigid lifesaving device designed for a group of survivors to hold on to while in the water is defined as a _______.
  58. #619 Which of the following is required to be included in the fireman's (emergency) outfit?
  59. #622 An immersion suit should be equipped with a/an __________.
  60. #623 Which of the following statements concerning immersion suits is correct?
  61. #624 If for any reason it is necessary to abandon ship while far at sea, it is important for the crew members to __________.
  62. #625 All personnel should be familiar with the lifeboats __________.
  63. #626 Which of the lifeboat parts listed must be painted bright red?
  64. #627 When using the rainwater collection tubes on a life raft, the FIRST collection should be __________.
  65. #628 The purpose of the four water pockets located on the underside of a life raft is to __________.
  66. #629 In order to retrieve an inflatable life raft and place it on deck, you should heave on the __________.
  67. #631 Using a sea anchor with the survival craft will __________.
  68. #632 With the sprinkler system and air system on, and all hatches shut, the survival craft will be protected from __________.
  69. #633 If the survival craft is not loaded to full capacity, the personnel should be __________.
  70. #635 When a rescue vessel approaches a survival craft in heavy seas, the person in charge of the survival craft should __________.
  71. #636 An 'on-load' release system on a survival craft means the cable can be released __________.
  72. #638 Which of the following conditions represents the appropriate time for setting off distress flares and rockets?
  73. #639 Each vessel in ocean and coastwise service must have an approved EPIRB. An EPIRB __________.
  74. #641 A fire can be extinguished by removing __________.
  75. #642 Except in rare cases, it is impossible to extinguish a shipboard fire by __________.
  76. #643 The blocking open or absence of fire dampers can contribute to __________.
  77. #644 A tank has been sealed and unventilated for a long period of time. Which of the following statements is true?
  78. #645 The upper explosive limit (UEL) of a mixture of flammable vapors and air is defined as __________.
  79. #647 It is necessary to cool the bulkheads and decks surrounding a compartment where there is a fire in order to __________.
  80. #648 To prevent the spread of fire by convection you should __________.
  81. #649 The spreading of fire as a result of heat being carried through a vessel's ventilation system is an example of heat transfer by __________.
  82. #650 In the event of a fire, the doors to a stair tower must be closed to prevent the spread of fire by____________.
  83. #651 Radiation can cause a fire to spread by __________.
  84. #653 The process that occurs when heat is generated by a chemical reaction within a substance and continues to a point of ignition is known as __________.
  85. #655 To prevent oily rags from spontaneously igniting they should be __________.
  86. #657 A fire in a pile of canvas would be classified as a __________.
  87. #658 Burning wood is considered to be which of the listed classes of fire?
  88. #660 A Type A fire has been reported onboard your vessel. What type of materials would your fire teams expect to find at the scene?
  89. #661 A fire in the paint locker would probably be __________.
  90. #662 A galley grease fire would be classified as __________.
  91. #663 Burning diesel oil should be treated as which class of fire?
  92. #665 A Type B fire has been reported onboard your vessel. What type of materials would your fire teams expect to find at the scene?
  93. #666 Which of the hazards listed is of a primary concern, other than fire damage, associated with a class C fire?
  94. #668 Class C fires may be combated using a __________.
  95. #670 A Type C fire has been reported onboard your vessel. What type of materials would your fire teams expect to find at the scene?
  96. #671 A class "D" fire would involve the burning of __________.
  97. #672 "Dry Powder" fire extinguishers, which contain a mixture of graphite and sodium chloride as the extinguishing agent, are generally used to fight which...
  98. #674 A magnesium fire would be classified as a __________.
  99. #675 Which of the following procedures reduces the possibility of an interior ventilation duct fire from rapidly spreading?
  100. #676 Paints and solvents used aboard a vessel should be __________.

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.