A.Water foam
B.Dry chemical powder
C.Water fog
D.Alcohol foam
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A.Manual fire detection system
B.Automatic fire detection system
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D.Watchman's supervisory system
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B.CO2
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D.Water fog
A.Alcohol foam
B.Dry chemical
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D.Water fog
A.Foam
B.Carbon dioxide
C.Dry chemical
D.Water fog
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D.Water
最新試題
Which precaution should be taken when testing a line throwing gun?（）
When water is used to fight a fire on board a ship，the effect of the weight of the water must be taken into account. How much sea water will increase the weight displacement by one ton?（）
Which portable fire extinguisher should be used on a class C fire on board a vessel?（）
Where should life jackets be stowed?（）.
When used to fight fire，carbon dioxide（）.
When two fire hose teams are attacking a fire they should（）.
Which fire extinguishing agent has the greatest capacity for absorbing heat?（）
Which portable fire extinguisher is normally recharged in a shore facility?（）
Which is a disadvantage of Halon as a fire extinguishing medium?（）
When joining the female coupling of the fire hose to the male outlet of the hydrant，you should make sure that the（）.