单项选择题
A fuel line breaks，sprays fuel on the hot exhaust manifold，and catches fire. Your FIRST action should be to（）.
A.batten down the engine room
B.start the fire pump
C.apply carbon dioxide to the fire
D.shut off the fuel supply
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相关考题
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单项选择题
A foam-type portable fire extinguisher would be most useful in combating a fire in（）.
A.solid materials such as wood or bales of fiber
B.flammable liquids
C.a piece of electrical equipment
D.combustible metallic solids -
单项选择题
A foam-type portable fire extinguisher is most useful in fighting a fire in（）.
A.generators
B.oil drums
C.the bridge controls
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单项选择题
A fixed CO2 system on a ship with a capacity of over 300 lbs (136 kilograms) CO2 which protects spaces other than tanks must have（）.
A.two or more releasing stations
B.automatic release in event of a fire
C.an audible alarm and time delay
D.an audible and visible alarm
