單項選擇題

When fighting an electrical fire, you should first （）.

A.stop ventilation to the area
B.stop the vessel
C.secure electricity to the circuit
D.apply CO₂to the fire

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單項選擇題

You are transferring fuel from the storage tanks to the day tanks by means of an electric fuel oil transfer pumpIf the pump motor catches fire, you would FIRST （）.

A.secure the fuel manifold
B.shut off power to the pump
C.shut off the power ventilation
D.spray water on the fire

單項選擇題

If the diesel fuel vapors present are within the flammable range （）.

A.the vapor air mixture is too rich to burn
B.an explosion may occur if a source of ignition is present
C.the vapor air mixture is too lean to bum the upper explosive
D.limit has been exceeded