USCGQ
Log in Start free
USCGQ
Toggle sidebar
Home
Engine
Engineering Safety
Start practicing

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.

Random question Build a timed exam

All Engineering Safety questions

Questions 1,001–1,100 of 1,109 · page 11 of 12

  1. #1393 What will happen if a fire hose is left unattended and under pressure with the nozzle shut off?
  2. #1394 Your ship has a low-pressure carbon dioxide system that covers the engine room. Fire has been reported in the engine room and the decision has been ma...
  3. #1395 While in port working cargo, a fire is reported on the forward car deck. After the captain sounds the general alarm, the crew musters and starts fight...
  4. #1396 You are the chief engineer of a vessel, while in port working cargo a fire is reported in the engine room. Shoreside firefighting assistance has been...
  5. #1397 A health hazard term listed on a Safety Data Sheet (SDS) that indicates allergic-like reaction in some people after repeated exposure is __________.
  6. #1398 Which ship must maintain Part II (Cargo/Ballast Operations) of the Oil Record Book?
  7. #1399 During oil transfer operations, who would be responsible for guaranteeing that the posted transfer procedures are being followed?
  8. #1400 Your passenger vessel has departed port with 1,235 passengers on board for a 10-day voyage. In accordance with 46 CFR Part 78, what should be your shi...
  9. #1401 Cross flooding may __________.
  10. #1402 Which of the following limitations is correct regarding gas masks, otherwise called filter masks?
  11. #1403 Which of the listed gases is the poisonous gas most likely to be found in a closed compartment involved in a fire?
  12. #1404 A ship's low-pressure CO2 fixed fire extinguishing system is normally designed for a storage tank pressure and temperature of approximately __________...
  13. #1405 In firefighting, the term "protecting exposures" means __________.
  14. #1406 If you see an individual fall overboard, what is the FIRST thing you should do?
  15. #1407 A specific document which identifies a chemical, and lists its physical properties, health hazards, required controls, firefighting procedures, cleanu...
  16. #1408 One consideration for determining the safest maximum rate at which bunker fuel may be received is by the __________.
  17. #1409 In accordance with 33 CFR Subchapter O (Pollution), which of the following is a mandatory section of the shipboard oil pollution emergency plan?
  18. #1410 In accordance with 33 CFR Subchapter O (Pollution), which of the following operations aboard a tanker must be recorded in the Oil Record Book on a tan...
  19. #1411 In accordance with 33 CFR Subchapter O (Pollution), a shipboard oil pollution emergency plan is required to be reviewed __________.
  20. #1412 In accordance with 46 CFR Subchapter D, the device used for preventing the passage of flames into enclosed spaces of tank vessels is referred to as wh...
  21. #1413 In accordance with 33 CFR Subchapter O, when off-loading garbage to another ship, your records must identify that ship by name and which of the follow...
  22. #1414 Which of the following terms is used to describe water or other liquid that has free surface?
  23. #1415 For what reason would span gas be used aboard liquefied natural gas carriers?
  24. #1416 An ullage reading is the distance from a given point at the __________.
  25. #1417 In accordance with 46 CFR Subchapter W, life jackets must be stowed where?
  26. #1418 In accordance with 33 CFR Subchapter O (Pollution), who makes the final decision of when oil transfer may begin?
  27. #1419 A low velocity fog applicator is retained in an all-purpose nozzle by a bayonet joint. The applicator is prevented from rotating in the joint by _____...
  28. #1420 In accordance with 33 CFR Subchapter O, the term "discharge", as it applies to the pollution regulations, means _________.
  29. #1421 In accordance with 46 CFR Subchapter I (Cargo and Miscellaneous Vessels), fire main outlet valves or hydrants located on exposed decks shall be ______...
  30. #1422 On a cargo ship equipped with a combination fire detection/carbon dioxide extinguishing system, the presence of fire is indicated at the cabinet simul...
  31. #1423 Any tanks located below the vessel’s center of gravity should be __________.
  32. #1424 In accordance with 46 CFR, life jackets should be stowed in __________.
  33. #1425 In accordance with 33 CFR Subchapter O (Pollution), the "Discharge of Oil Prohibited" placard is required on which of the following vessels?
  34. #1426 Your ship has left shore on the east coast of the United States; how far must you be from shore to be able to discharge paper waste into the Atlantic...
  35. #1427 Which listed method, is the most effective to fight a fire on the open deck of a vessel if using a dry chemical type fire extinguisher?
  36. #1428 When taking samples of a tank atmosphere with an explosimeter, you should __________.
  37. #1429 According to 33 CFR Subchapter O (Pollution), an oceangoing ship of over 400 gross tons must be fitted with a standard discharge shore connection. Wha...
  38. #1430 While donning the positive pressure self-contained breathing apparatus, you discover that the air cylinder pressure gauge and the regulator pressure g...
  39. #1431 In the event of a vessel fire in port, shoreside firefighters can find details on vessel's fire control plans in which of the following locations ?
  40. #1432 A galley grease fire would be classified as ________.
  41. #1433 Your vessel is carrying a cargo of Ethane, which has caught fire. Which extinguishing agent(s) should be used?
  42. #1434 As team leader of the No.2 emergency squad you arrive at the scene of a fire in the Bosun's storeroom on the weather deck. How would you proceed to fi...
  43. #1435 According to Coast Guard Regulations (46 CFR 30), a flammable liquid with a Reid vapor pressure of 8-1/2 psi or less, and a flash point of 80°F or bel...
  44. #1436 What term is listed on a Safety Data Sheet (SDS) to describe a chemical that can produce life-threatening or seriously disabling health hazards?
  45. #1437 According to Coast Guard Regulations (CFR 33 Part 151), all oceangoing tankships of 150 GT and above and all other ships of 400 GT and above are requi...
  46. #1438 Your vessel, of more than 1000 gross tons on an international voyage is crossing the Atlantic Ocean. The second engineer injures his hand while workin...
  47. #1439 When combatting a major electrical fire at sea, the main consideration is __________.
  48. #1440 The principal personnel hazard unique to Halon fire extinguishers is _________.
  49. #1441 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
  50. #1442 While fighting a fire, in order to utilize two hoses from a single "wye" gate attached to a hydrant outlet, you need only turn the valve handle ______...
  51. #1443 The physical data term on a Safety Data Sheet (SDS) describing whether a liquid is lighter or heavier than water is __________.
  52. #1444 What is the power consumed by "R2" of the circuit illustrated in figure "B", if the applied voltage is 24 volts and the resistance of R1 is 3 ohms, R2... illustration
  53. #1445 A good approach to personnel safety is to assume that all tanks and pumprooms are potentially dangerous. You should immediately leave an area whenever...
  54. #1446 For any piece of equipment requiring lubrication, what is the single most important lubricating oil property in meeting the operating conditions?
  55. #1447 A hole in the hull above the waterline may be temporarily patched with __________.
  56. #1448 In the illustrated circuit of figure "B", what is the voltage across "R1" with the switch closed if the applied voltage is 24 volts and resistance of... illustration
  57. #1449 When performing routine AC motor maintenance what should be included?
  58. #1450 There are three pieces of information that should be included in delivering a message via a sound-powered telephone. Which of the following represents...
  59. #1451 In what application is an emergency shutdown most likely to be located outside the machinery space when the pump itself is located within the machiner...
  60. #1452 R-134a is often the replacement for which older type of refrigerant?
  61. #1453 What is the primary function of the device illustrated? illustration
  62. #1454 The discharge capacity of the axial piston hydraulic pump, shown in the illustration, is __________. illustration
  63. #1455 What statement is true regarding the reading of a liquid filled manometer?
  64. #1456 The leads from an ohmmeter are attached to the leads of the opposite ends of an AC motor stator coil. If a reading of infinity is obtained, what does...
  65. #1457 To find the relative humidity of an accommodation space, you would use a __________.
  66. #1458 What may be the cause of an AC generator failing to produce a voltage?
  67. #1459 Regarding the relative flow patterns through the tubes and the shell of single pass shell-and-tube heat exchangers, what statement is true?
  68. #1460 When replacing a defective transformer in a paralleled transformer configuration, which of the following actions must be carried out to ensure proper...
  69. #1461 In the illustrated system, the engine room station is unable to signal any other station, nor is any other station able to signal the engine room stat... illustration
  70. #1462 Which statement is correct concerning the circuits in the illustrated sound-powered telephone system? illustration
  71. #1463 In the illustrated refrigeration system, what is the proper name for the component labeled "A"? illustration
  72. #1464 An AC generator operating in parallel loses its excitation without tripping the circuit breaker. What will be the result?
  73. #1465 Which of the hand valve configurations for the gauge manifold set is the correct set up for monitoring both the low and high system pressures? illustration
  74. #1466 Inhalation of high concentrations of chlorofluorocarbon refrigerants (CFCs) may have which of the following effects?
  75. #1467 What does the component labeled "B" in the illustration represent? illustration
  76. #1468 During normal operation, how is most of the refrigerant released to the atmosphere from low-pressure systems?
  77. #1469 The control of exhaust temperature on a solid waste/sludge incinerator is critical. How is this temperature normally controlled?
  78. #1470 Under the definitions under the EPA Clean Air Act rules, how can refrigerant recovery equipment that is considered as being system-dependent best be d...
  79. #1471 On a ship with a continuously manned engine room, with a three-person watch rotation, what is the watch and rest period rotation?
  80. #1472 A definite advantage in the use of water as a fire extinguishing agent is its ability to __________.
  81. #1473 What is used to keep water leaking from a pump packing gland away from the bearing housing?
  82. #1474 You have just extinguished an oil fire on the floor plates of the engine room with a 15-pound CO2 extinguisher. Which of the listed dangers should you...
  83. #1475 How is the air compressor shown in the illustration typically operated when used aboard a vessel? illustration
  84. #1476 As shown in the illustrated D type single furnace boiler, what does item "G" represent? illustration
  85. #1477 Which direct reading pressure gauge is capable of measuring and displaying both positive and negative pressures?
  86. #1478 On US flag steam propulsion vessels, the main reason for having a low suction line on the fuel oil service or settling tanks is to accomplish which of...
  87. #1479 Which of the tanks shown in the illustration supplies fuel to the emergency generator? illustration
  88. #1480 What communications system would be operational despite a loss of ship's electrical power?
  89. #1481 The pressure in the feedwater system must exceed boiler steam drum pressure in order to __________.
  90. #1482 The function of item "7" shown in the illustration is to __________. illustration
  91. #1483 The valve depicted in the illustration shown is a __________. illustration
  92. #1484 On a main propulsion turbine set of a merchant ship, where is the astern staging generally located?
  93. #1485 Which direct reading pressure gauge is capable of measuring and displaying two pressures simultaneously?
  94. #1486 Saltwater ballast is to be discharged into the #6 port and starboard wing tanks. Which combination of valves, illustrated, must be opened, and which v... illustration
  95. #1487 With regard to the relative flow patterns through the tubes and the shell of single pass shell-and-tube heat exchangers, what statement is true?
  96. #1488 What type of wound is generally associated with no bleeding and is very susceptible to infection?
  97. #1489 Steel-toed safety shoes are recommended for many types of work. What type of work activity would be an exception to the rule and where steel-toed shoe...
  98. #1490 How is accidental flooding of the engine room bilges through the bilge system prevented?
  99. #1491 For boring holes in mild steel and general work, the correct included angle of a drill point is __________.
  100. #1492 Which single illustrated lathe tool could be used to turn down the stock in figure "II"? illustration

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.

Other Engine modules

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.