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 801–900 of 1,109 · page 9 of 12

  1. #1168 An LNG carrier has an approved type of gas detecting system to detect methane leaks in the __________.
  2. #1169 Which of the following methods will reduce the possibility of producing an electrical spark?
  3. #1170 Individuals who have consumed alcohol within 24 hours of exposure to hydrogen sulfide can tolerate __________.
  4. #1172 Your vessel is carrying a cargo of Methyl Ethyl Ketone (MEK), which has caught fire. Which extinguishing agents should be used?
  5. #1173 Your vessel is carrying a cargo of Propionitrile, which has caught fire. Which extinguishing agents should be used?
  6. #1175 Your vessel is carrying a cargo of Ethyl methacrylate, which has caught fire. Which extinguishing agents should be used?
  7. #1176 The air spaces in the floor of an inflatable raft will provide protection against __________.
  8. #1177 Puncture leaks in the lower tubes, or bottom of an inflatable life raft should first be stopped by using __________.
  9. #1178 Which of the following must be carried out in order to manually launch an inflatable life raft not designed for float-free operation?
  10. #1179 Most lifeboats are equipped with __________.
  11. #1180 You have abandoned ship and are in charge of a life raft. How much water per day should you permit each occupant to drink after the first 24 hours?
  12. #1181 Immediately after abandoning a vessel, lookouts should be posted aboard life rafts to look for __________.
  13. #1182 Why is an upper limit switch used when raising the lifeboat?
  14. #1183 When abandoning ship, after launching the motor lifeboat you should __________.
  15. #1184 Which of the following machinery space operations is required to be logged in the Oil Record Book?
  16. #1186 Which of the petroleum products listed has a flash point below 150°F?
  17. #1187 To avoid excessive pressures in the fuel oil filling system during bunkering, you should __________.
  18. #1188 After fuel tanks have been filled and bunkers completed, which of the listed procedures should be followed next?
  19. #1189 When a fuel oil tank is being topped off during bunkering operations, the tank valve should be closed __________.
  20. #1190 During topping off of bunker tanks, the loading rate must be personally supervised by the __________.
  21. #1193 You are the chief engineer of a vessel of more than 1600 gross tons on an international voyage. While bunkering lube oil in port, the hose fails and o...
  22. #1198 During onboard training with your engineers you review the various firefighting agents available for use onboard a ship. Which of the following statem...
  23. #1202 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...
  24. #1204 Life jackets should be stowed in __________.
  25. #1206 You are on a vessel with a 30' mean draft. While maneuvering away from the dock at slow-speed the vessel grounds near the bow area on hard sand. In or...
  26. #1208 If a fire ignites in the engine room as a result of a high pressure fuel oil leak, you should FIRST __________.
  27. #1209 According to Coast Guard regulations (33 CFR), which of the following describes items pertinent to waste management plans?
  28. #1210 When off loading garbage to another ship, your records must identify that ship by name and __________.
  29. #1211 A vessel sailing through the specific special areas may discharge or dispose of _________.
  30. #1212 Yawing is the angular motion of the vessel about what axis?
  31. #1213 The motion of a vessel impacts its stability. Which of these motions shown in the illustration affects the governing "positional motion" stability? Il... illustration
  32. #1215 The motion of a vessel impacts its stability. Which of these motions shown in the illustration affects the governing "directional" stability? Illustra... illustration
  33. #1216 The motion of a vessel impacts its stability. Which of these motions shown in the illustration affects the governing "transverse" stability? Illustrat... illustration
  34. #1218 Your vessel is loading cargo and you are monitoring the stability and trim. Currently, the Longitudinal Center of Buoyancy (LCB) is vertically aligned...
  35. #1220 As first engineer, you are standing by the #3 deep fuel oil storage tank as a crew member is working inside the tank. Before entering the tank, the at...
  36. #1221 The airborne concentrations of substances (such as hydrogen sulfide) under which nearly all workers may be repeatedly exposed without adverse effects...
  37. #1222 If flammable vapors have penetrated a gas free space, which of the following actions would be the most hazardous to perform?
  38. #1223 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...
  39. #1227 If your vessel is to carry ten portable foam fire extinguishers, you must maintain a supply of at least __________.
  40. #1228 The relief valve on a fire pump is set at 25 psi above the pressure necessary to maintain the required fire hose streams, or __________.
  41. #1229 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...
  42. #1230 Before making any welded repairs to the internals of a vessel's fuel tank in a U.S. port, the tank must be examined by __________.
  43. #1231 The size of the fire hydrant hose connections must be either 1 1/2 inches or __________.
  44. #1232 According to Coast Guard Regulations (46 CFR), a 10 pound dry chemical extinguisher is equivalent to a __________.
  45. #1233 What Coast Guard Regulations apply to the equipment of a fireman's outfit?
  46. #1236 Your vessel was damaged in a collision and one compartment has partially flooded. The vessel has free communication with the sea with water flowing in...
  47. #1237 You are part of a team to overhaul a fire that was just extinguished in the crew lounge. Where is the nearest fire axe to break apart the furniture? I... illustration
  48. #1238 On the illustrated fire control plan, what emergency equipment is located in the scullery? Illustration SF-0045 illustration
  49. #1241 You are being directed to a fire in the lower engine room, port side, frame 127. What machinery is found in that exact location? Illustration SF-0044 illustration
  50. #1242 The term "oily mixture", as defined in the Pollution Prevention Regulations (33 CFR) includes __________.
  51. #1243 The Exclusive Economic Zone extends from the baseline of territorial sea of the United States seaward ___________.
  52. #1244 Exemption or partial exemption from compliance with any requirement in the Oil or Hazardous Material Pollution Prevention Regulations prescribed in (3...
  53. #1245 Which of the methods shown in the illustration is the correct way to fit shoring? Illustration SF-0016 illustration
  54. #1246 In the illustration shown, the sea painter is identified as item number _____. Illustration SF-0043 illustration
  55. #1247 What term is listed on a Material Safety Data Sheet (MSDS) to describe a chemical that can produce a life-threatening or seriously disabling health ha...
  56. #1248 Which of the following statements is TRUE concerning life jackets?
  57. #1249 Kapok life jackets require proper care and should NOT be __________.
  58. #1250 In the event of a fire, the doors to a stair tower must be closed to prevent the spread of fire by ____________.
  59. #1251 In figure 1 of the illustration, fire would spread to compartment "B" by __________. Illustration SF-0013 illustration
  60. #1252 Which of the following conditions is a symptom of heat stroke?
  61. #1253 When administering mouth-to-mouth rescue breathing to an adult, you should breathe at the rate of how many breaths per minute?
  62. #1254 When required to work in an area where explosive gases may accumulate, you should use hand tools which are __________.
  63. #1255 The fire extinguishing agent dispensed by the unit shown in the illustration is produced by __________. Illustration SF-0020 illustration
  64. #1256 If the items shown in the illustration are burning, this fire would be a Class __________. Illustration SF-0001 illustration
  65. #1257 The equipment shown in the illustration is a __________. Illustration SF-0012 illustration
  66. #1258 The component shown in the illustration would be installed in which of the following types of fire detection systems? Illustration SF-0004 illustration
  67. #1259 What would be the most probable cause for a high-pressure alarm to be activated in a low-pressure CO2 fixed fire extinguishing system?
  68. #1260 When re-entering an engine room that has been flooded with CO2, the investigating team should initially __________.
  69. #1261 To operate a carbon dioxide extinguisher having the type of head shown in the illustration, you would __________. Illustration SF-0008 illustration
  70. #1262 Which of the following statements is FALSE concerning the proper procedure in handling a fire hose?
  71. #1263 When the cotton cover of a fire hose becomes oily or greasy, it should be washed with a solution of mild soapy fresh water and __________.
  72. #1264 Which of the following components provides a direct source of sea water for the fire main system?
  73. #1265 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
  74. #1266 What is the purpose of opening the doors and portholes in figure 2 of the illustration? Illustration SF-0013 illustration
  75. #1267 You notice smoke coming from an open laundry room doorway, which smells like electrical insulation. After activating the fire alarm, which of the foll...
  76. #1268 If a fire ignites in the engine room as a result of a high-pressure fuel oil leak, you should FIRST __________.
  77. #1269 A large fire has developed in the HFO centrifuge room accessed by door "E". To combat the fire you should __________. Illustration SF-0013 illustration
  78. #1270 Tankers carrying cryogenic cargoes, such as LNG, are fitted with gas detector systems which are designed to activate an alarm at 30% of the lower expl...
  79. #1271 Tank stripping is accomplished more effectively by using __________.
  80. #1272 A ullage reading is the distance from a given point at the __________.
  81. #1273 Which of the following statements is true concerning the overboard discharge of vessel sewage at sea?
  82. #1274 Each ship having an inert gas system must have a portable instrument to measure concentrations of hydrocarbon vapor in inert atmospheres and also to m...
  83. #1275 The component in an inert gas system used for cleaning the gas of solid and sulfur combustion products, while simultaneously cooling the inert gas, is...
  84. #1276 If additional weight is placed on the main deck of the vessel shown in the illustration __________. Illustration SF-0023 illustration
  85. #1277 What standard mathematical formula is commonly used to calculate a vessels water plane area for stability purposes?
  86. #1278 If the cause of severe list or trim of a vessel is due to off-center ballast, counter-flooding into empty tanks will __________.
  87. #1279 If the cause of a sudden severe list is due to negative initial stability, counter-flooding into empty ballast tanks may __________.
  88. #1280 The symbol shown in the illustration used to represent displacement is __________. Illustrations SF-0022 illustration
  89. #1281 Symbol number "3" shown in the illustration represents which of the following? Illustration SF-0022 illustration
  90. #1282 The symbol shown in the illustration and is used as the reference from which transverse measurements are made is __________. Illustration SF-0022 illustration
  91. #1283 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 __________. I... illustration
  92. #1284 What effect will transferring fuel oil from No.1P double bottom to No.3P double bottom have on the trim of a vessel?
  93. #1285 Which of the listed conditions will occur to the ship's center of gravity if 200 tons of steel is transferred to the ship’s cargo-hold from shor...
  94. #1286 In a compartment that has been completely flooded with water, the greatest pressure will be exerted __________.
  95. #1287 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
  96. #1288 In the illustration shown, the sea painter is identified as item number _____. Illustration SF-0043 illustration
  97. #1289 Life jackets should be stowed in __________.
  98. #1290 Kapok life jackets require proper care and should NOT be __________.
  99. #1291 Which of the following statements is TRUE concerning life jackets?
  100. #1292 If a life raft should capsize __________.

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.