A.kept in nonmetal containers
B.discarded as soon as possible
C.cleaned thoroughly for reuse
D.kept in the paint locker
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A.able to absorb heat
B.water based
C.nonconducting
D.nontoxic
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
A.salt water and a wire brush
B.caustic soap
C.mild soap and fresh water
D.a holystone
A.removing the heat
B.removing the oxygen
C.removing the fuel
D.interrupting the chain reaction
A.is a finer，more diffuse water spray than low-velocity fog
B.requires that the water pressure be no greater than 60 psi
C.produces an effective fog pattern no more than 6 feet beyond the nozzle
D.extinguishes a fire by absorbing heat and reducing the supply of oxygen
A.should be worn while fighting a fire
B.can be used in atmospheres deficient in oxygen
C.filter contaminants from air that is to be breathed
D.may be substituted for a self-contained breathing apparatus
A.penetrates to the bottom of the fire
B.is kept saturated with low-velocity water fog
C.mixes with the burning fuel oil
D.completely covers the top of the burning liquid
A.By cooling the oil below the ignition temperature
B.By removing the fuel source from the fire
C.By excluding the oxygen from the fire
D.By increasing the weight of the oil
A.smothering the burning material
B.chemical combination with burning material
C.absorbing the burning material
D.organic destruction of the burning material
A.the discharge valve is open
B.the control box glass is broken
C.pressure from the control cylinders is detected
D.the control cylinders have been completely discharged
最新試題
Fire in an engine compartment is best extinguished with carbon dioxide gas (CO2) and by（）.
CO2 cylinders，which protect the small space in which they are stored must（）.
Halon extinguishes fire primarily by（）.
How does foam extinguish an oil fire?（）.
Generally，the first action in extinguishing an LFG fire caused by escaping gas is to（）.
Fire and abandon ship stations and duties may be found on the（）.
Flame screens are used to（）.
Flames from small leaks of LFG may be extinguished by（）.
Foam extinguishes a fire mainly by（）.
Gas masks（）.