A.the accumulation of explosive gases
B.faster cooling of the fire
C.the fire to spread through the ventilation system
D.fixed foam systems to be ineffective
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A.must be fixed if the vessel exceeds 12 meters in length
B.may be used as a fire pump
C.must be portable if there are more than 4 watertight compartments
D.must be capable of pumping at least 450 gpm
A.remove oxygen from the area
B.cool fuel below ignition temperature
C.smother with CO2
D.smother fire with foam
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
最新試題
Each crewmember has an assigned firefighting station. This assignment is shown on the（）.
Radiation spreads a fire by（）.
On a ship，watertight doors should be operated（）.
The discharge side of every fire pump must be equipped with a（）.
The all-purpose nozzle will produce a fog spray when you（）.
Operation of the valve control release on a fixed CO2 system must immediately（）.
Regular foam can be used on all but which flammable liquid?（）
The brickwork surrounding the firebox of a boiler is known as（）.
Since the fire is increasing on board the vessel，the Captain orders that the ship be（）.
The bilge pump on a fishing vessel（）.