A.can fit any size hose
B.converts a stream of water into a fog
C.increases the amount of water reaching the fire
D.can spray two streams of water at the same time
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A.a vessel is equipped with an automatic smoke or fire detecting system
B.the cargo hatches are of steel construction
C.the cargo is of a nonflammable type
D.there is sufficient fire protection located on the main deck adjacent to the cargo hatch
A.To replace a damaged life preserver
B.For use during fire drills
C.For use during boat drills
D.At no time
A.during abandon drill
B.during fire drill
C.weekly
D.when the rig is being moved
A.week
B.month
C.crew change
D.other week
A.starting the fire pumps
B.checking the operation of watertight doors
C.checking arrangements for abandon ship
D.All of the above
最新試題
The disadvantage of using CO2 is that the（）.
Small quantities of flammable liquids needed at a work site should be（）.
On a ship，a fire drill shall be conducted once every（）.
Operation of the valve control release on a fixed CO2 system must immediately（）.
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（）.
The blocking or absence of fire dampers can cause（）.
Each crewmember has an assigned firefighting station. This assignment is shown on the（）.
The all-purpose nozzle will produce a fog spray when you（）.
One of the limitations of foam as an extinguishing agent is that foam（）.
One disadvantage of using regular dry chemical (sodium bicarbonate) in firefighting is that（）.