A、shutting off the air supply
B、cooling the fuel to below ignition temperature
C、dispersing the fuel
D、removing the source of ignition
更多“Foam extinguishes a fire by（）.”相关的问题
A、foam extinguishers B、water spray equipment C、dry powder extinguishers D、soda-acid extinguishers
A、It is effective in controlling fire in flowing oil such as coming from a broken fuel line B、It absorbs heat from materials that could cause reignition C、Most foams can be used jointly with dry chemical extinguishing agents to attack a fire by two methods of extinguishment D、Once the surface is blanketed with foam and the fire is extinguished，no further foam is required
A、Foam conducts electricity B、To be most effective，foam should be directed at the base of the fire C、Foam is most effective on burning liquids which are flowing D、Foam can ONLY be used to extinguish class A fires
A、increases the size of foam bubbles formed B、increases the rate of foam production C、improves the extinguishing properties of foam D、gives the nozzleman more freedom of movement，since it can be placed anywhere in the hose line
A、dry chemical or foam B、foam or soda acid C、carbon dioxide or foam D、carbon dioxide or dry chemical
A、Dry chemical or foam B、Foam or soda acid C、carbon dioxide or foam D、carbon dioxide or dry chemical
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