A.Conducts electricity
B.Difficult to store
C.Large volume necessary to be effective
D.Ineffective in powdered metal fires
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A.Bouncing a straight stream of water off the overhead to create spray effect
B.Spraying foam on a bulkhead and letting it flow down and over a pool of burning oil
C.Flooding a paint locker with CO2 and sealing the compartment
D.Cooling adjacent bulkheads with water to prevent the spread of the fire by conduction
A.Water
B.Foam
C.Dry chemical
D.Carbon Dioxide
A.Water foam
B.Dry chemical powder
C.Water fog
D.Alcohol foam
A.Manual fire detection system
B.Automatic fire detection system
C.Smoke detection system
D.Watchman's supervisory system
A.Foam
B.CO2
C.Dry chemical
D.Water fog
最新試題
Where should life jackets be stowed?（）.
Which portable fire extinguisher is normally recharged in a shore facility?（）
Which characteristic is an advantage of Halon as a fire extinguishing medium?（）
When inspecting a tank barge to see that it has all the required fire extinguishers and other safety items aboard，which of the following is the best source for determining what is required?（）
Which extinguishing agent is most effective on a mattress fire?（）
When using a high-velocity fog stream in a passageway，the possibility of a blow back must be guarded against. Blow back is most likely to occur when（）.
Which extinguishing agent is recommended in the Chemical Data Guide for use on a carbon disulfide fire?（）
When joining the female coupling of the fire hose to the male outlet of the hydrant，you should make sure that the（）.
When using carbon dioxide to fight a fire on a bulkhead，the CO2 should be applied（）.
When must a dry chemical fire extinguisher be recharged?（）