单项选择题
Radiation can spread a fire by （）.
A.transmitting the heat of a fire through the ship s metal
B.burning liquids flowing into another space
C.heated gases flowing through ventilation systems
D.the transfer of heat across an unobstructed space
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Which of the listed burning materials would be described as a class "B" fire?（）
A.Acetylene
B.Lube oil
C.Grease
D.All of the above -
单项选择题
If an oil spill occurs on deck, you should （）.
A.cover the area with foam
B.cover the area with absorbent material
C.wash down immediately with a fire hose
D.wash down immediately with an oil dispersing solvent -
单项选择题
Fire detecting systems on merchant vessels may be arranged to sense （）.
A.smoke
B.rate of temperature rise
C.ionized particles
D.all of the above
