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單項(xiàng)選擇題

If a fire occurs in the boiler room because of a leaking fuel line to a burner, you shut off the fuel using the（）

A.burner valve
B.root valve
C.quick closing valve
D.oil return valve

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單項(xiàng)選擇題

Spontaneous combustion could occur in（）

A.paint thinner in an open can
B.fuel accumulation in the bilge
C.oily rags in an unvented compartment
D.gasoline stored in steel drums

單項(xiàng)選擇題

All classes of fires can be safely combated using（）

A.foam
B.CO₂
C.low velocity water fog
D.high velocity water fog

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