Safety Technology Exchange Edition: Daily Question (2016.7.18)
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This post was last edited by 68589544 on 2016-7-22 at 12:08: 1.jpg 1. ____ is mainly used to extinguish fires involving solid materials. A. Water-type fire extinguisher B. Foam fire extinguisher C. Dry powder fire extinguisher D. Carbon dioxide fire extinguisher 2. ____ is a fire extinguishing method in which a chemical extinguishing agent is sprayed into the burning area to participate in the combustion reaction and terminate the chain reaction, thereby stopping the combustion. A. Fire extinguishing by suffocation B. Fire extinguishing by isolation C. Fire extinguishing by cooling D. Fire extinguishing by suppression A;D
1. C. --------2. D.