单项选择题
A fire of escaping liquefied flammable gas is best extinguished by（）.
A.cooling the gas below the ignition point
B.cutting off the supply of oxygen
C.stopping the flow of gas
D.interrupting the chain reaction
点击查看答案&解析
相关考题
-
单项选择题
A fire starts on you vessel while refueling. You should first（）.
A.stop the ventilation
B.sound the general alarm
C.determine the source of the fire
D.attempt to extinguish the fire -
单项选择题
A flame screen（）.
A.permit the passage of vapor but not of flame
B.prevents the passage of flammable vapors
C.prevents inert gas from leaving a tank
D.permits vapors to exit but not enter a tank -
单项选择题
A foam-type portable fire extinguisher is most useful in fighting a fire in（）.
A.generators
B.oil drums
C.the bridge controls
D.combustible metals
