A.contaminating food with extinguishing agent
B.spreading through the engineering space
C.causing loss of stability
D.a grease fire in the ventilation system
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A.cooling the outside bulkheads with water
B.shutting all sources of air into the compartment
C.closing the sea chest
D.flooding the compartment with salt water
A.contains 15 pounds of CO2
B.weighs 15 pounds when full of CO2
C.has 15 pounds of pressure at the nozzle
D.weighs 15 pounds when empty
A.consealed
B.detained
C.contained
D.kept
A.kept in nonmetal containers
B.discarded as soon as possible
C.cleaned thoroughly for reuse
D.kept in the paint locker
最新試題
Flames from small leaks of LFG may be extinguished by（）.
CO2 cylinders equipped with pressure actuated discharge heads will discharge automatically when（）.
Generally，the first action in extinguishing an LFG fire caused by escaping gas is to（）.
Fire hose couplings（）.
Fire extinguishing agents used on Class C fires must be（）.
Fire extinguishers of sizes III，IV，and V are designated as（）.
Firefighting foam is only effective when the foam（）.
Foam-type portable fire extinguishers are most useful in combating fires involving（）.
Halon extinguishers used on a class C fire should be directed at the（）.
Fusible-link fire dampers are operated by（）.