A.Effective even if ventilation is not shut down
B.Will not deteriorate in storage
C.Non-corrosive
D.Effective on electrical equipment
您可能感興趣的試卷
你可能感興趣的試題
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
A.Length of the discharge pipe
B.Height of the discharge pipe
C.Difference between the discharge and suction pressures
D.Sum of discharge and suction pressures
最新試題
What is the most important characteristic of the extinguishing agent in fighting a class C fire?（）
What is the most vulnerable part of the fire main system on board an offshore rig?（）
The type of extinguisher which should be used for an electricity fire is（）.
Triethylene glycol fires may be extinguished by（）.
The success of an indirect attack on a fire depends on the（）.
What does the term head mean when applied to a fire pump?（）
There is a fire aft aboard your vessel. To help fight the fire，you should（）.
What does blowing tubes accomplish?（）
What is an advantage of using foam in fire fighting?（）
Traditionally，the signal for fire aboard ship is（）.