A、over the top of the flames
B、off a bulkhead into the fire
C、in front of the fire
D、at the base of the fire
更多“When fighting a fire with a portable dry chemical fire extinguisher，the stream should be directed（）.”相关的问题
A、A.One man report the fire, and the other two men fight the fire B、B.One man report the fire, one man fight the fire, and one man evacuate and secure the area C、C.One man report the fire, one man fight the fire, and one man act as a safety observer D、D.All three men fight the fire and report it immediately after it is extinguished
A、all hands are at their fire stations B、all fire-fighting equipment is at the scene C、the fixed systems are activated D、the fire is contained and no longer spreading
A、A.stop ventilation to the area B、B.stop the vessel C、C.secure electricity to the circuit D、D.apply CO2 to the fire
A、is effective if used promptly on an oil fire B、has a greater cooling effect than water C、is lighter than air D、is harmless to cargo and crew
A、look for a CO2 extinguisher B、use a soda acid extinguisher C、shut off the fuel supply D、smother the fire with rags
A、A.attempt to isolate the fire from the LPG B、B.cool the bottles or remove them from the fire area C、C.see that the valves on all LPG bottles are closed D、D.place insulating material over the bottles
A、carbon dioxide B、dry chemical C、foam (stored-pressure type) D、water (cartridge-operated)
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