A.dry chemical
B.alcohol foam
C.carbon dioxide
D.All of the above
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A.more than 6 short blasts and 1 long blast on the whistle，and the same signal on the general alarm
B.continuous sounding of the ship's whistle and the general alarm for at least 10 seconds
C.1 short blast on the whistle
D.alternating short and long blasts on the ship's whistle
A.replace the gasket in the male coupling
B.reduce fire pump pressure
C.replace the gasket in the female coupling
D.rethread the male coupling
A.cool the bulkheads around the fire
B.remove combustibles from direct exposure
C.close all openings to the area
D.shut off all electric power
A.glycerine
B.graphite
C.kerosene
D.fresh water and soap
A.Operate the trigger valve
B.Weigh the extinguisher
C.Test with a pressure gauge
D.Read the date of last test
最新試題
Weight is considered during the periodic required inspection and servicing of（）.
What is best suited for fighting a fire in a ballast control room?（）
There are two disadvantages to CO2 pump as a firefighting agent. One of these is the limited quantity available，and the other is（）.
What are the most important reasons for using water fog to fight fires?（）
What is the most vulnerable part of the fire main system on board an offshore rig?（）
Water fog from an all-purpose nozzle may be used to（）.
The straight stream capability of an all-purpose nozzle is used in fighting a class A fire to（）.
To lubricate the swivel or remove corrosion from a fire hose coupling，you should use（）.
To prevent the spread of fire by conduction you should（）.
What is required in addition to the heat，fuel，and oxygen of the fire triangle to have a fire?（）