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單項(xiàng)選擇題

Which portable fire extinguisher is normally recharged in a shore facility?（）

A.Dry chemical (cartridge-operated)
B.Water (cartridge-operated)
C.Water (pump tank)
D.Carbon dioxide

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單項(xiàng)選擇題

Which item is NOT included in the fireman’s outfit on a cargo vessel?（）

A.Fire ax
B.Flashlight
C.rigid helmet
D.Fresh air breathing apparatus

單項(xiàng)選擇題

Which is a disadvantage of Halon as a fire extinguishing medium?（）

A.Conducts electricity
B.Difficult to store
C.Large volume necessary to be effective
D.Ineffective in powdered metal fires

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