A.Weight
B.Temperature
C.Electrical nonconductivity
D.Cost
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A.Electricity
B.Chain reaction
C.Pressure
D.Smoke
A.The rated capacity in gallons，quarts，or pounds
B.The hydrostatic test date of the cylinder
C.The name of the item
D.An identifying mark of the actual manufacturer
A.Effective even if ventilation is not shut down
B.Will not deteriorate in storage
C.Non-corrosive
D.Effective on electrical equipment
A.Slow down the spread of fire by cooling adjacent structures
B.Cover the fire with foam
C.Smother the fire with a blanket or similar object
D.Break up solid objects to ensure that any deep seated fires are extinguished
A.Automatic sprinkler system
B.Steam smothering system
C.Dry chemical system
D.Carbon dioxide system
最新試題
What is required in addition to the heat，fuel，and oxygen of the fire triangle to have a fire?（）
What are the most important reasons for using water fog to fight fires?（）
The spread of fire is prevented by（）.
To remedy a leaking fire hose connection at the hydrant，secure the valve and（）.
What is an advantage of using foam in fire fighting?（）
The ventilation system of your ship has fire dampers restrained by fusible links. Which statement is TRUE?（）
What does blowing tubes accomplish?（）
To lubricate the swivel or remove corrosion from a fire hose coupling，you should use（）.
To determine if a CO2 fire extinguisher is fully charged，you would（）.
The spread of fire is NOT prevented by（）.