A.casing
B.outer hose
C.line cover
D.jacket
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A.refractory
B.the screen wall
C.the water wall
D.fire plate
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
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
最新試題
Lifesaving regulations require that a fire drill include（）.
Portable foam type fire extinguishers are most effective on（）.
One advantage of the all-purpose nozzle is that it（）.
How long must the records of tests and inspections of fire fighting equipment on board a ship be retained on board?（）
Since the fire is increasing on board the vessel，the Captain orders that the ship be（）.
Once a vessel has loaded packaged hazardous cargo，the cargo spaces shall be inspected. The spaces shall also be inspected at least once in every 24 hours. The only exception to daily inspection is when（）.
Overhauling a fire in the living quarters on a vessel must include（）.
The best method of extinguishing a class A fire is to（）.
The all-purpose nozzle will produce a fog spray when you（）.
The canvas covering of fire hose is called the（）.