Pass Benchmark: 70% • Standard: USCG NMC / 46 CFR
USCG Engine Plants (Supplementary) (Set 3)
30:00
|Question 1 of 30
Question Navigator
Correct Incorrect Pending Starred
Question 1 of 30
When an oil fire has been extinguished, the surface of the oil should be kept covered with foam to prevent __________.
Browse Questions in Set 3
30 MCQs #1 When an oil fire has been extinguished, the surface of the oil should be kept covered with foam to prevent __________. #2 You notice smoke coming from an open laundry room doorway, which smells like electrical insulation. After activating the fire alarm, which of the following would be the lowest action priority? - #3 In the event of a fire, the doors to a stair tower must be closed to prevent the spread of fire by____________. #4 The upper explosive limit (UEL) of a mixture of flammable vapors and air is defined as __________. #5 In figure 1 of the illustration, fire would spread to compartment "B" by __________. SF-0013 #6 If the items shown in the illustration are burning, this fire would be a Class __________. SF-0001 #7 A fire in a pile of dunnage would be classified as a __________. #8 Burning wood is considered to be which of the listed classes of fire? #9 A fire in the paint locker would probably be __________. #10 A galley grease fire would be classified as __________. #11 The class of fire on which a blanketing effect is essential to extinguish the fire is __________. #12 Burning diesel oil should be treated as which class of fire? #13 When combating a class C fire, which of the following dangers may be present? #14 A magnesium fire would be classified as a __________. #15 Which of the listed sources of ignition may cause fuel vapors to ignite? #16 The reading of a combustible gas indicator indicates the percentage of the __________. #17 A good approach to personnel safety is to assume that all tanks and pump rooms are potentially dangerous. You should immediately leave an area whenever __________. #18 High concentrations of hydrogen sulfide gas are most dangerous to personnel because they can __________. #19 By definition, combustible liquids are liquids which __________. #20 By definition, an example of a flammable liquid is __________. #21 What term is listed on a Material Safety Data Sheet (MSDS) to describe a chemical that can produce life-threatening or seriously disabling health hazard? #22 The component in an inert gas system used for cleaning the gas of solid and sulphur combustion products, while simultaneously cooling the inert gas, is called the __________. #23 When securing the operation of an inert gas system, the final step should be _________. #24 If emergency welding repairs must be made to the upper area of a fuel tank, the tank and/or adjacent compartments may need to be __________. #25 An electrically "charged mist" will be found in a __________. #26 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 compartment "B" you should __________. SF-0005 #27 What is the purpose of opening the doors and portholes in figure 2 of the illustration? SF-0013 #28 You notice smoke coming from an open laundry room doorway, which smells like electrical insulation. After activating the fire alarm, which of the following would be the lowest action priority? - #29 If a fire ignites in the engine room as a result of a high pressure fuel oil leak, you should FIRST __________. #30 A large fire has developed in the HFO centrifuge room accessed by door "E". To combat the fire you should __________. SF-0013
Question Discussion & Notes
0Have a doubt, memory trick, or exam update? Share your insights with fellow mariners.
Loading mariner discussions...