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

USCG Safety & Environmental Protection (Deck) (Set 18)

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Question 1 of 30

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Question 1 of 30

Convection spreads a fire by __________.

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30 MCQs

#1 Convection spreads a fire by __________. #2 Radiation spreads a fire by __________. #3 The spread of fire is prevented by __________. #4 To prevent the spread of fire by convection you should __________. #5 To prevent the spread of fire by conduction you should __________. #6 The spread of fire is NOT prevented by __________. #7 Ventilation systems connected to a compartment in which a fire is burning are normally closed to prevent the rapid spread of the fire by __________. #8 The atmosphere in a tank is too rich when it is __________. #9 The atmosphere in a tank is too lean if it is __________. #10 What is the generally accepted method of determining whether the atmosphere within a cargo tank is explosive, too rich, or too lean to support combustion? #11 The explosive range of petroleum vapors mixed with air is __________. #12 Small quantities of flammable liquids needed at a work site should be __________. #13 Paints and solvents on a vessel should be __________. #14 The hoods over galley ranges present what major hazard? #15 Which of the following when removed will extinguish a fire? #16 What is required in addition to the heat, fuel, and oxygen of the fire triangle to have a fire? #17 All of the following are part of the fire triangle EXCEPT __________. #18 Except in rare cases, it is impossible to extinguish a shipboard fire by __________. #19 Normally, the percentage of oxygen in air is __________. #20 The lowest temperature required to cause self-sustained combustion of a substance independent of any outside source of ignition is called __________. #21 Which condition is necessary for a substance to burn? #22 The vapor pressure of a substance __________. #23 You have carbon tetrachloride as part of the cargo. If a fire breaks out in the general area, what is the major danger from the carbon tetrachloride? #24 Which statement describes the relationship between flash point and auto-ignition temperature? #25 The "flammable limits" of an atmosphere are the __________. #26 The explosive range of Bunker C mixed with air is __________. #27 The explosive range of Diesel Oil mixed with air is __________. #28 The flammable limit of methyl ethyl ketone is from __________. #29 The flash point of a liquid means the temperature __________. #30 Which statement is TRUE concerning the "flash point" of a substance?

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