單項(xiàng)選擇題Which of the listed extinguishing agents is NOT suitable for fighting a liquid paint fire?()

A.Dry chemical
B.Foam
C.Water
D.Carbon dioxide


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1.單項(xiàng)選擇題In the fire main system, quick cleaning strainers are located at the().

A.pump suctions
B.pump discharge
C.fire hydrants
D.hose nozzle

2.單項(xiàng)選擇題Where should muster lists be posted?()

A.In crews accommodation spaces
B.On the navigating bridge
C.In the engine room
D.All of the above

3.單項(xiàng)選擇題The best method of extinguishing a class A fire is to ().

A.remove oxygen from the area
B.smother fire with foam
C.smother fire with CO2
D.cool fuel below ignition temperature

4.單項(xiàng)選擇題When approaching a fire from win ward, you should shield firefighters from the fire by using()

A.low-velocity fog
B.high-velocity fog
C.a straight stream of water
D.foam spray

5.單項(xiàng)選擇題Diesel fuel vapors ().

A.can not be ignited by a spark unless the vapor is in a confined space
B.are nontoxic in all concentrations
C.can not be ignited by a spark unless they are at their auto-ignition temperature
D.are heavier than air