A.closing the compartment except for the ventilators
B.completely closing the compartment
C.leaving the compartment open to the air
D.increasing the air flow to the compartment by blowers
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A.salt water and a wire brush
B.caustic soap
C.mild soap and fresh water
D.a holystone
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
A.4Certificate of Inspection
B.Certificate of Seaworthiness
C.Classification Certificate
D.Certificate of Registry
A.able to absorb heat
B.water based
C.nonconducting
D.nontoxic
A.used for electrical fires only
B.the smallest
C.the most accessible
D.the most effective
最新試題
Fire hose couplings（）.
Fire extinguishing agents used on Class C fires must be（）.
Fire and abandon ship stations and duties may be found on the（）.
Fire fighting equipment requirements for a particular vessel may be found on the（）.
Halon extinguishes fire primarily by（）.
Control valves of a CO2 system may be located within the protected space when（）.
Generally，the first action in extinguishing an LFG fire caused by escaping gas is to（）.
Fusible-link fire dampers are operated by（）.
Fire hose should be washed with（）.
Halon from extinguishers used on a class B fire，should be directed（）.