A.8the heat of a fire melting the link
B.a break-glass and pull-cable system
C.electrical controls on the bridge
D.a mechanical arm outside the vent duct
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A.solid materials such as wood or bales of fiber
B.inflammable liquids
C.electrical equipment
D.metallic solids
A.it provides cooling as a secondary effect
B.works well on extinguishing electrical fires
C.can be used to combat combustible metal fires
D.All of the above
A.cooling
B.chemical action
C.smothering
D.inerting the air
A.smothering the burning material
B.chemical combination with burning material
C.absorbing the burning material
D.organic destruction of the burning material
A.shutting off the air supply
B.cooling the fuel to below ignition temperature
C.dispersing the fuel
D.removing the source of ignition
最新試題
CO2 cylinders，which protect the small space in which they are stored must（）.
Fire and abandon ship stations and duties may be found on the（）.
Good housekeeping on a vessel prevents fires by（）.
Fire extinguishers on inspected vessels are numbered by size I through V，with I being（）.
Except in rare cases，it is impossible to extinguish a shipboard fire by（）.
Halon fire extinguishers are NOT effective when used on which types of fires?（）
How do you operate a portable CO2 fire extinguisher?（）.
Fire alarm system thermostats are actuated by（）.
Halon from extinguishers used on a class B fire，should be directed（）.
CO2 cylinders equipped with pressure actuated discharge heads will discharge automatically when（）.