Pass Benchmark: 70% (21/30) • Standard: USCG NMC / 46 CFR

USCG Engineering Safety & Environmental Protection (Set 25)

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Question 1 of 30

Mechanical foam used for firefighting is produced by __________.

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30 MCQs

#1 Mechanical foam used for firefighting is produced by __________. #2 The most common cooling agent used for fighting fires on tank vessels is __________. #3 Which of the following statements is true concerning the Halon 1301 fire extinguishing agent? #4 Which of the following statements is true concerning carbon dioxide when used as a fire extinguishing agent? #5 To operate a portable foam fire extinguisher, you should __________. #6 In a cartridge-operated dry chemical type fire extinguisher, when the CO2 cartridge is activated, the dry chemical is released from the extinguisher __________. #7 Portable Halon extinguishers used on a class "B" fire should be directed __________. #8 The passive safety device installed on each Halon fire extinguishing cylinder, to prevent its over pressurization is called a __________. #9 Which fire extinguisher is most prone to freezing when stowed in low temperatures? #10 The state of charge of a stored pressure type dry chemical fire extinguisher can be readily determined by __________. #11 While working in a hot engine room, what is the cause of heat exhaustion? #12 While working in a hot engine room, what is your best protection against heat exhaustion? #13 In addition to moving the victim to a shaded area, placing the victim in a prone position and loosening any tight clothing, what treatment should be administered? #14 What are the symptoms of heat exhaustion? #15 According to Coast Guard Regulations (46 CFR), a flammable liquid with a Reid vapor pressure of 8 1/2 psi or less, and a flash point of 80°F or below, is a grade __________. #16 Which of the petroleum products listed has a flash point below 150°F? #17 High concentrations of hydrogen sulfide gas are most dangerous to personnel because they can __________. #18 A liquid, as listed on a Material Safety Data Sheet (MSDS), having a flash point below 100°F (37.78°C) is called a/an __________. #19 Pressure-vacuum relief valves on tank vessel cargo tanks should be kept in good working order to prevent __________. #20 The term "load on top" is the name of a method used on many crude oil carriers for the purpose of __________. #21 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 __________. #22 Progressive flooding in the engine room may be minimized by securing watertight boundaries and __________. #23 Your ship has run aground and it is necessary to determine whether or not a compartment has flooded. Therefore, you should __________. #24 Which type of respiratory protection is preferable for the repair/investigation personnel in a hydrogen sulfide (H2S) environment? #25 Which of the devices listed would be safe to use in a compartment with insufficient oxygen? #26 A fire can be extinguished by removing __________. #27 Which of the conditions listed is necessary for a substance to burn? #28 Except in rare cases, it is impossible to extinguish a shipboard fire by __________. #29 All of the following are part of the fire triangle EXCEPT __________. #30 The blocking open or absence of fire dampers can contribute to __________.

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