A.remove oxygen from the area
B.cool fuel below ignition temperature
C.smother with CO2
D.smother fire with foam
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A.spray directly on the base of the fire
B.flow the foam down a nearby vertical surface
C.sweep the fire with the foam
D.spray directly on the surface of the fire
A.incapable of supporting combustion because the hydrocarbon content is below the LFL (Lower Flammable Limit)
B.capable of supporting combustion because the hydrocarbon content is above the UFL (Upper Flammable Limit)
C.capable of supporting a fire once started
D.not safe for ballasting
A.pull the nozzle handle all the way back toward the operator
B.pull the nozzle handle back to a position where the handle is perpendicular to the plane of the nozzle
C.push the nozzle handle forward as far as it will go
D.insert a fog applicator between the fire hose and nozzle
A.used only under the supervision and direction of a ship's officer
B.tightly capped and stowed with other tools near the job site when securing at the end of the day
C.used only when a pressurized fire hose is laid out ready for immediate use
D.in a metal container with a tight cap
A.subtle
B.dental
C.brittle
D.scuttled
最新試題
The atmosphere in a tank is too lean if it is（）.
Operation of the valve control release on a fixed CO2 system must immediately（）.
Lifesaving regulations require that a fire drill include（）.
The discharge side of every fire pump must be equipped with a（）.
Removing which will extinguish a fire?（）.
The best method of extinguishing a class A fire is to（）.
The disadvantage of using CO2 is that the（）.
The collision bulkhead shall be of（）.
The all-purpose nozzle will produce a fog spray when you（）.
The blocking or absence of fire dampers can cause（）.