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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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
A.portable
B.semi-portable
C.fixed
D.disposable
A.crewman's duty list
B.Certificate of Inspection
C.shipping articles
D.muster list
最新試題
CO2 cylinders equipped with pressure actuated discharge heads will discharge automatically when（）.
Fixed CO2 systems would not be used on crew’s quarters or（）.
Halon extinguishes fire primarily by（）.
Halon extinguishers used on a class C fire should be directed at the（）.
Halon from extinguishers used on a class B fire，should be directed（）.
Fire hose couplings（）.
Flames from small leaks of LFG may be extinguished by（）.
How is the external flotation bladder of an immersion suit inflated?（）
Halon fire extinguishers are NOT effective when used on which types of fires?（）
Halon extinguishes a fire by（）.