单项选择题

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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单项选择题

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

单项选择题

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

单项选择题

Which firefighting method is an example of an indirect attack on a fire?（）.

A.Bouncing a straight stream of water off the overhead to create spray effect
B.Spraying foam on a bulkhead and letting it flow down and over a pool of burning oil
C.Flooding a paint locker with CO₂ and sealing the compartment
D.Cooling adjacent bulkheads with water to prevent the spread of the fire by conduction