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Engine · 141 questions

Retired questions · Engineering Safety - USCG Exam Questions

These are retired questions the Coast Guard no longer draws exams from. They stay online for reference; the current questions are in Engineering Safety.

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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All Retired questions · Engineering Safety questions

Questions 1–100 of 141 · page 1 of 2

  1. #2 The wooden shoring shown in the illustration is bearing against the hatch coaming and is supporting a load in the direction indicated by the arrows. W... illustration
  2. #4 Which of the methods shown in the illustration is the correct way to fit shoring? SF-0016 illustration
  3. #12 The lengthening of a crack formed in the shell plating of a ship may be prevented by __________.
  4. #18 For a victim who is coughing and gagging, as a result of a partial obstruction of the airway by a foreign body, a potential rescuer should __________.
  5. #21 When giving first aid, you should understand how to conduct primary and secondary surveys in addition to __________.
  6. #22 After an injury, which of the following can be determined by examining the condition of a victim's pupils?
  7. #35 In treating a person for extensive first or second degree thermal burns it is important to prevent or reduce __________.
  8. #51 In any major personal injury, first aid is to include the treatment of the injury and what additional treatment?
  9. #53 A person reports to you with a fishhook in their thumb. The accepted procedure for removing it should be to __________.
  10. #58 You are about to enter a compartment to investigate a suspected smoldering fire. If you're not wearing an self-contained breathing apparatus, you shou...
  11. #59 The equipment shown in the illustration is a __________. SF-0012 illustration
  12. #61 Which of the following statements is true concerning canister-type gas masks?
  13. #66 Which of the following statements is TRUE concerning lifejackets?
  14. #67 Kapok lifejackets require proper care and should NOT be __________.
  15. #85 In the illustration shown, the sea painter is identified as item number _____. SF-0043 illustration
  16. #109 Seawater may be used for drinking water __________.
  17. #125 When required to work in an area where explosive gases may accumulate, you should use hand tools which are __________. -
  18. #131 The component shown in the illustration would be installed in which of the following types of fire detection systems? SF-0004 illustration
  19. #139 To operate a carbon dioxide extinguisher having the type of head shown in the illustration, you would __________. SF-0008 illustration
  20. #142 When fighting an oil or gasoline fire, which of the listed fire extinguishing agents should NEVER be sprayed directly into the fire?
  21. #144 The fire extinguishing equipment shown in the illustration is a large __________. SF-0009 illustration
  22. #145 The fire extinguishing agent dispensed by the unit shown in the illustration is produced by __________. SF-0020 illustration
  23. #146 If the threads and gasket of a fire hose coupling are in good condition, the minimum mechanical advantage necessary for making a watertight connection...
  24. #147 When the cotton cover of a fire hose becomes oily or greasy, it should be washed with a solution of mild soapy freshwater and __________.
  25. #154 The all-purpose, or combination nozzle is capable by itself of producing a solid stream of water __________.
  26. #158 Which of the following statements is correct regarding the fog applicators used in conjunction with the combination nozzle?
  27. #163 If the alarm provided in the fixed CO2 system sounds in the engine room, you should __________.
  28. #168 When reentering an engine room that has been flooded with CO2, the investigating team should initially __________.
  29. #171 Which of the following components provides a direct source of seawater for the fire main system?
  30. #173 The fire main system should be flushed with fresh water whenever possible to __________.
  31. #174 In the fire main system, quick cleaning strainers are located at the __________.
  32. #190 In figure 1 of the illustration, fire would spread to compartment "B" by __________. SF-0013 illustration
  33. #194 If the items shown in the illustration are burning, this fire would be a Class __________. SF-0001 illustration
  34. #219 Which of the listed sources of ignition may cause fuel vapors to ignite?
  35. #234 A good approach to personnel safety is to assume that all tanks and pump rooms are potentially dangerous. You should immediately leave an area wheneve...
  36. #236 By definition, combustible liquids are liquids which __________.
  37. #247 What term is listed on a Material Safety Data Sheet (MSDS) to describe a chemical that can produce life-threatening or seriously disabling health haza...
  38. #252 The component in an inert gas system used for cleaning the gas of solid and sulphur combustion products, while simultaneously cooling the inert gas, i...
  39. #264 You are in compartment "A", shown in the illustration, and suspect a fire in compartment "B". In order to check for and confirm the fire in compartmen... illustration
  40. #272 What is the purpose of opening the doors and portholes in figure 2 of the illustration? SF-0013 illustration
  41. #283 A large fire has developed in the HFO centrifuge room accessed by door "E". To combat the fire you should __________. SF-0013 illustration
  42. #313 Tankers carrying cryogenic cargoes, such as LNG, are fitted with gas detector systems alarmed at 30% of the lower explosive limit. If the gas detector...
  43. #381 The component in an inert gas system used for cleaning the gas of solid and sulphur combustion products, while simultaneously cooling the inert gas, i...
  44. #385 Each ship having an inert gas system must have a portable instruments to measure concentrations of hydrocarbon vapor in inert atmospheres and also to...
  45. #392 If additional weight is placed on the main deck of the vessel shown in the illustration __________. SF-0023 illustration
  46. #398 What standard mathematical formula is commonly used to calculate a vessels waterplane area for stability purposes?
  47. #402 The symbol shown in the illustration used to represent displacement is __________. SF-0022 illustration
  48. #403 Symbol #3, shown in the illustration, represents __________. SF-0022 illustration
  49. #404 The symbol shown in the illustration and is used as the reference from which transverse measurements are made is __________. SF-0022 illustration
  50. #411 The symbol shown in the illustration and used as a reference from which the height of the center of gravity is measured, is item number __________. SF... illustration
  51. #419 What effect will transferring fuel oil from #1P double bottom to #3P double bottom have on the trim of a vessel?
  52. #428 Which of the listed conditions will occur to the ship's center of gravity if 200 tons of steel is transferred to the ship¶ csargo hold from shore side...
  53. #434 The wooden shoring shown in the illustration is bearing against the hatch coaming and is supporting a load in the direction indicated by the arrows. W... illustration
  54. #437 Which of the methods shown in the illustration is the correct way to fit shoring? SF-0016 illustration
  55. #445 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 _____...
  56. #452 Which of the following statements is TRUE concerning lifejackets?
  57. #453 Lifejackets should be stowed in __________.
  58. #454 Kapok lifejackets require proper care and should NOT be __________.
  59. #458 An immersion suit should be equipped with a/an __________.
  60. #460 In the illustration shown, the sea painter is identified as item number _____. SF-0043 illustration
  61. #462 In order for the automatic lifeboat drain to operate properly __________.
  62. #507 The component shown in the illustration would be installed in which of the following types of fire detection systems? SF-0004 illustration
  63. #517 In addition to the lifejackets stowed in places that are readily accessible, lifejackets must also be stowed at______________.
  64. #545 Some Pollution Prevention Regulations (33 CFR), only apply to "new ships." Under these regulations, a new ship is a ship __________.
  65. #555 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...
  66. #577 According to MARPOL, the definition of graywater includes drainage from __________. -
  67. #578 To operate a carbon dioxide extinguisher having the type of head shown in the illustration, you would __________. SF-0008 illustration
  68. #583 Which of the following statements is true concerning the fire extinguisher shown in the illustration? SF-0006 illustration
  69. #586 The fire extinguishing equipment shown in the illustration is a large __________. SF-0009 illustration
  70. #588 When the cotton cover of a fire hose becomes oily or greasy, it should be washed with a solution of mild soapy freshwater and __________.
  71. #589 A high velocity fog nozzle will produce the most effective spray pattern when the water pressure is not less than __________.
  72. #590 The all-purpose, or combination nozzle is capable by itself of producing a solid stream of water __________.
  73. #595 Your vessel has just been struck by another vessel. As Chief Engineer, after meeting with the Captain and Chief Mate, you have immediately ordered the...
  74. #596 The wooden shoring shown in the illustration is bearing against the hatch coaming and is supporting a load in the direction indicated by the arrows. W... illustration
  75. #598 Which of the methods shown in the illustration is the correct way to fit shoring? Refer to Illustration SF-0016 illustration
  76. #610 While donning the positive-pressure self-contained breathing apparatus, you discover that the air cylinder pressure gage and the regulator pressure ga...
  77. #612 Prior to entering a compartment containing an atmosphere potentially dangerous to life or health, you should don an approved breathing apparatus. Whic...
  78. #613 You are instructing new crew members in engine room safety and first aid. You use an example of "One crew member, while working in the engine room, fi...
  79. #614 Which of the following statements is TRUE concerning lifejackets?
  80. #615 Lifejackets should be stowed in __________.
  81. #616 Kapok lifejackets require proper care and should NOT be __________.
  82. #621 Which of the following statements is true concerning an immersion suit and its use?
  83. #637 Seawater may be used for drinking water __________.
  84. #646 In figure 1 of the illustration, fire would spread to compartment "B" by __________. SF-0013 illustration
  85. #656 If the items shown in the illustration are burning, this fire would be a Class __________. SF-0001 illustration
  86. #659 You are conducting training on fire fighting procedures. What type of fire is characterized by the burning of ordinary combustible materials where the...
  87. #664 You are conducting training on fire fighting procedures. What type of fire is characterized by the burning of flammable liquids, greases, etc., where...
  88. #669 You are conducting training on fire fighting procedures. What type of fire is characterized by the burning of electrical equipment where the use of no...
  89. #682 You are reviewing emergency procedures with new crew members. How would you direct them to proceed if they hear the fire and emergency signal on the s...
  90. #686 How would you ensure that your crew is prepared to combat a ship board fire using ship's equipment?
  91. #687 The component shown in the illustration would be installed in which of the following types of fire detection systems? See Illustration SF-0004 illustration
  92. #690 In reviewing ship drawings with a new junior office you note that some divisional bulkheads are labeled A60. In the discussion with the junior officer...
  93. #691 During repairs it is necessary to replace existing vessel bulkhead. Drawings indicate the bulkhead is A60. "A" indicates which of the following?
  94. #693 Drawings of your deck plans show the use of a A60 bulkheads. "A" indicates which of the following?
  95. #695 In preparation for an extended yard period, you are reviewing your ship's plans. You notice several bulkheads are labeled A60. What is indicated by th...
  96. #701 A three inch overboard discharge line, located six feet below the waterline, has ruptured and separated from the hull. What would be the minimum numbe... illustration
  97. #702 Your chemical tanker was built to the IBC Code and has foam as the main fire fighting medium. During one of your safety meetings you review the proper...
  98. #709 The fire extinguishing equipment shown in the illustration is a large __________. See Illustration SF-0009 illustration
  99. #716 What would be a major consequence of allowing the refrigeration system of a low pressure fixed CO2 fire extinguishing system to remain inoperable?
  100. #719 During vessel familiarization, you find the vessel you are newly assigned to as Chief Engineer has a high pressure CO2 system for the engine room. In...

Engineering Safety questions: what to expect

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

This retired set holds 141 Engineering Safety questions the Coast Guard no longer draws on exams. They stay online for reference; the current Engineering Safety module is the one to study.

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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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.