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
Fixed CO2 systems would not be used on crew’s quarters or（）.
Generally，the first action in extinguishing an LFG fire caused by escaping gas is to（）.
Flame screens are used to（）.
How do you operate a portable CO2 fire extinguisher?（）.
Fire may be spread by which means?（）.
High-velocity fog（）.
Fire extinguishers on inspected vessels are numbered by size I through V，with I being（）.
Foam-type portable fire extinguishers are most useful in combating fires involving（）.
Fusible-link fire dampers are operated by（）.
Except in rare cases，it is impossible to extinguish a shipboard fire by（）.