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
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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
A.It is effective in controlling fire in flowing oil such as coming from a broken fuel line
B.It absorbs heat from materials that could cause reignition
C.Most foams can be used jointly with dry chemical extinguishing agents to attack a fire by two methods of extinguishment
D.Once the surface is blanketed with foam and the fire is extinguished，no further foam is required
A.It is MOST effective on very hot oil fires where the temperatures of the liquid exceed 100°C (212°F)
B.Most foams can be used with dry chemicals to attack a fire by two methods
C.Foam is effective on combustible metal fires
D.Foam can be made with seawater or fresh water
最新試題
Under the Carriage of Goods by Sea Act of 1936，a vessel will be liable for damage to a cargo when the damage arises out of（）.
There is a fire aft aboard your vessel. To help fight the fire，you should（）.
What is meant by the term overhaul in firefighting?（）
What is best suited for fighting a fire in a ballast control room?（）
The spread of fire is NOT prevented by（）.
What is an advantage of using foam in fire fighting?（）
The success of an indirect attack on a fire depends on the（）.
What is NOT a characteristic of carbon dioxide fire-extinguishing agents?（）
Triethylene glycol fires may be extinguished by（）.
To lubricate the swivel or remove corrosion from a fire hose coupling，you should use（）.