单选题A fire of escaping liquefied flammable gas is best extinguished by().Acooling the gas below the ignition pointBcutting off the supply of oxygenCstopping the flow of gasDinterrupting the chain reaction

单选题
A fire of escaping liquefied flammable gas is best extinguished by().
A

cooling the gas below the ignition point

B

cutting off the supply of oxygen

C

stopping the flow of gas

D

interrupting the chain reaction


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LNG是( )的缩写。 A、Liquefied NG GasB、Liquefied Natural GasC、Liteer Natural GasD、Liquified Night Gas

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液化天然气liquefied natural gas(LNG)

单选题A fire of escaping liquefied flammable gas is best extinguished by().Acooling the gas below the ignition pointBcutting off the supply of oxygenCstopping the flow of gasDinterrupting the chain reaction

单选题The weight of liquefied petroleum gas vapors as compared to air is().AvariableBthe sameClighterDheavier

单选题The basic training in fire prevention and fire fighting should include the theoretical elements which should cover ().Athe three elements of fire and explosionBlower and upper flammable limitsCclassification of flies and applicable extinguishing agentsDAll of the above

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单选题What normally helps in detecting escaping gas? ()ARunning hand along pipeBRed flameCOdorDIncrease the line pressure

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