A、carbon dioxide
B、Halon 1301
C、dry chemical
D、water fog
更多“An extinguishing agent which effectively cools，dilutes combustible vapors，removes oxygen，and provides a heat and smoke screen is（）.”相关的问题
A、lack of toxicity B、the multipurpose extinguishing ability C、burn-back protection D、cooling ability
A、lack of toxicity B、the multipurpose extinguishing ability C、burn-back protection D、cooling ability
A、lack of toxicity B、the multipurpose extinguishing ability C、bum-back protection D、cooling ability
A、Compilation fails. B、After line 15, the value of age is 5. C、After line 15, the value of age is 3. D、An exception is thrown at runtime.
A、a boat bucket B、an air tank filled with water C、an oar and canvas weighted down D、All of the above
A、harder it is to extinguish B、easier it is to extinguish C、less chance there is of re-ignition D、easier it is to control
A、couducts electricity B、should be directed at the base of the fire C、is most effective on burning gases which are flowing D、extinguishes by cooling oil fires blow ignition temperature
A、sweep flames away with water spray B、shut off the leak C、use a chemical foam fire extinguisher D、call the local fire department
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