單項(xiàng)選擇題

Fire hose couplings（）.

A.are made of bronze，brass，or soft alloy metals
B.should be painted red in order to identify hose lengths
C.are specially hardened to prevent crushing
D.should be greased frequently

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單項(xiàng)選擇題

Fire fighting equipment requirements for a particular vessel may be found on the（）.

A.4Certificate of Inspection
B.Certificate of Seaworthiness
C.Classification Certificate
D.Certificate of Registry

單項(xiàng)選擇題

Fire extinguishing agents used on Class C fires must be（）.

A.able to absorb heat
B.water based
C.nonconducting
D.nontoxic

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Fire hose couplings（）.

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Fire fighting equipment requirements for a particular vessel may be found on the（）.

Fire extinguishing agents used on Class C fires must be（）.