单项选择题
A.shutting off the air supply B.cooling the fuel to below ignition temperature C.dispersing the fuel D.removing the source of ignition
Flames from small leaks of LFG may be extinguished by（）...
单项选择题Flames from small leaks of LFG may be extinguished by（）.
A.utilizing carbon dioxide or dry chemical fire extinguishers B.utilizing soda and acid fire extinguishers C.blowing the flames out D.letting it burn itself out
Flame screens are used to（）.A.contain flammable fumesB....
单项选择题Flame screens are used to（）.
A.contain flammable fumes B.protect firefighters from flames C.prevent flames from entering tanks D.keep flames and sparks from getting out of an engine's exhaust system
Fixed CO2 systems would not be used on crew’s quarters ...
单项选择题Fixed CO2 systems would not be used on crew’s quarters or（）.
A.the paint locker B.spaces open to the atmosphere C.cargo holds D.the engine room
