A.Electricity
B.Chain reaction
C.Pressure
D.Smoke
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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
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
最新試題
Water fog from an all-purpose nozzle may be used to（）.
Triethylene glycol fires may be extinguished by（）.
What is an advantage of using foam in fire fighting?（）
What is required in addition to the heat，fuel，and oxygen of the fire triangle to have a fire?（）
Traditionally，the signal for fire aboard ship is（）.
Under the regulations for cargo vessels，which statement is TRUE concerning fireman’s outfits?（）
The success of an indirect attack on a fire depends on the（）.
What is NOT a characteristic of carbon dioxide fire-extinguishing agents?（）
Ventilation systems connected to a compartment in which a fire is burning are normally closed to prevent the rapid spread of the fire by（）.
The ventilation system of your ship has fire dampers restrained by fusible links. Which statement is TRUE?（）