单项选择题
What are the most important reasons for using water fog to fight fires?（）
A.Smothers burning surfaces，organically destroys fuel
B.Cools fire and adjacent surfaces，provides protective barrier
C.Reaches areas not protected by steam or CO2 smothering systems
D.Allows fire to be attacked from leeward，saturates liquid surfaces
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相关考题
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单项选择题
Weight is considered during the periodic required inspection and servicing of（）.
A.CO2 (carbon dioxide) fire extinguishers
B.foam fire extinguishers
C.water (stored pressure) fire extinguishers
D.All of the above -
单项选择题
Water fog from an all-purpose nozzle may be used to（）.
A.fight an electrical fire
B.fight a magnesium fire
C.eliminate smoke from a compartment
D.All of the above -
单项选择题
Ventilation systems connected to a compartment in which a fire is burning are normally closed to prevent the rapid spread of the fire by（）.
A.convection
B.conduction
C.radiation
D.spontaneous combustion
