单项选择题
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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相关考题
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单项选择题
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 -
单项选择题
All classes of fires can be safely combated using（）
A.foam
B.CO2
C.low velocity water fog
D.high velocity water fog -
单项选择题
If there were a fire in the bunker tanks, you would（）
A.close the vent
B.pump out the tank
C.activate the fixed CO2 system
D.cut off the heating coils
