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A fire of escaping liquefied flammable gas is best extinguished by ______.A.cooling the gas below the ignition pointB.cutting off the supply of oxygenC.stopping the flow of gasD.interrupting the chain reaction

题目

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

相似考题

1.Any open flame can’t exist in this business buildingA.Yes. We’ve removed all the flammable gas.B.Yes. We’ve searched everywhere for flammable liquidC.Yes. All the flammable liquid and gas have been removed already.D.Yes. We’ve removed all the liquid, gas and wood which can be burned

2.An inert gas system on a tanker should be used to ______.A.prevent the generation of flammable or combustible gas in tanksB.blow out cargo lines to prevent the build up of gas concentrationsC.dilute tank atmospheres to keep gas concentrations below the lower explosive limitD.prevent fires in the pumproom by continually displacing flammable vapors

3.How does an inert gas system on a tanker function to prevent explosions in cargo tanks?A.De-energizes the "charged mist" effectB.Maintains a positive pressure on the vent header to cool the flammable vaporsC.Inert gas filters out the flammable vapors from the cargo tank spacesD.Inert gas dilutes the flammable vapor and air concentrations to keep them below the lower explosive limit

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

参考答案和解析
正确答案：C
液化气体泄漏着火，最有效的扑救方法是断开气源。
更多“A fire of escaping liquefied flammable gas is best extinguished by ______.A.cooling the ga ”相关问题

  • 第1题：

    If you have a liquefied flammable gas barge in tow，which is NOT required of you with respect to the barge and its cargo ________．

    A.Make periodic inspections of bilges

    B.Keep the barge under constant surveillance

    C.Have a properly certificated tankerman or at least one licensed officer on board the towing vessel

    D.Verify ullage readings


    正确答案：D

  • 第2题：

    You are testing a tank that contained gasoline by using a combustible gas indicator．Under testing，the tank sample caused the needle to move rapidly to 100 on the dial then fall to zero．What is the concentration of flammable gas ________．

    A.Less than the flammable range

    B.Within the flammable range

    C.Over the flammable range

    D.The explosimeter is defective and giving a false reading


    正确答案：C

  • 第3题：

    A galley grease fire on the stove may be extinguished using______．

    A.water

    B.foam

    C.the range hood extinguishing system

    D.fire dampers


    正确答案：C
    发生在炉上的厨房油火可使用有作用距离的灭火系统扑灭。

  • 第4题：

    Generally, the first action in extinguishing an LFG fire caused by escaping gas is to ______.

    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


    正确答案：B
    一般来说，在灭因气体泄漏而引起的火灾中，首先要关闭泄漏处。

  • 第5题：

    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


    正确答案： B
    解析： 暂无解析

  • 第6题：

    单选题
    If you have a liquefied flammable gas barge in tow，which is NOT required of you with respect to the barge and its cargo? （）
    A

    Make periodic inspections of bilges

    B

    Keep the barge under constant surveillance

    C

    Have a properly certificated tankerman or at least one licensed officer on board the towing vessel

    D

    Verify ullage readings


    正确答案： A
    解析： 暂无解析

  • 第7题：

    单选题
    When an oil fire has been extinguished, the surface of the oil should be kept covered with foam to prevent （）.
    A

    air from contacting the oil vapors

    B

    permitting re-ignition boiling of the heated oil

    C

    spontaneous combustion below the oil surface

    D

    toxic fumes from escaping to the surface


    正确答案： D
    解析： 暂无解析

  • 第8题：

    单选题
    A fire can be extinguished by removing （）.
    A

    the heat

    B

    the fuel

    C

    the oxygen

    D

    any of the above


    正确答案： C
    解析： 暂无解析

  • 第9题：

    单选题
    Fires in escaping flammable gas are quickly brought under control by（）
    A

    stopping the flow of gas

    B

    reducing the chemical chain reaction

    C

    increasing the oxygen supply

    D

    cooling below the autoignition point


    正确答案： C
    解析： 暂无解析

  • 第10题：

    单选题
    The primary hazard of liquefied petroleum gas and liquefied natural gas is（）.
    A

    pressure

    B

    toxicity

    C

    temperature

    D

    flammability


    正确答案： B
    解析： 暂无解析

  • 第11题：

    单选题
    An inert gas system on a tanker should be used to（）.
    A

    prevent the generation of flammable or combustible gas in tanks

    B

    blow out cargo lines to prevent gas concentrations

    C

    dilute tank atmospheres to keep gas concentrations below the lower explosive limit

    D

    prevent fires in the pumproom by continually displacing flammable vapors


    正确答案： D
    解析： 暂无解析

  • 第12题：

    单选题
    When fighting fires in spaces containing bottles of LPG (liquefied petroleum gas)，you should （）.
    A

    attempt to isolate the fire from the LPG

    B

    cool the bottles or remove them from the fire area

    C

    see that the valves on all LPG bottles are closed

    D

    place insulating material over the bottles


    正确答案： B
    解析： 暂无解析

  • 第13题：

    The primary hazard of liquefied petroleum gas and liquefied natural gas is ______．

    A.Pressure

    B.Toxicity

    C.Temperature

    D.Flammability


    正确答案：D

  • 第14题：

    The engine in a covered lifeboat is fueled with ______．

    A.Kerosene

    B.Unleaded gasoline

    C.Diesel oil

    D.Liquefied gas


    正确答案：C

  • 第15题：

    Argon is classified as a ______.

    A.corrosive

    B.flammable gas

    C.flammable liquid

    D.nonflammable gas


    正确答案：D
    氩气被分类为不易燃气体。

  • 第16题：

    液化天然气liquefied natural gas（LNG）


    正确答案: 经加工后被液化的天然气。其主要组份为甲烷，组份可能含有少量的乙烷、丙烷、氮和通常存在于天然气中的其它组份。

  • 第17题：

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

    variable

    B

    the same

    C

    lighter

    D

    heavier


    正确答案： D
    解析： 暂无解析

  • 第18题：

    单选题
    Generally, the first action in extinguishing an LFG fire caused by escaping gas is to（）.
    A

    sweep flames away with water spray

    B

    shut off the leak

    C

    use a chemical foam fire extinguisher

    D

    call t e local fire department


    正确答案： B
    解析： 暂无解析

  • 第19题：

    单选题
    A large oil fire is best extinguished with（）
    A

    soda acid

    B

    foam

    C

    CO2

    D

    sand


    正确答案： A
    解析： 暂无解析

  • 第20题：

    单选题
    Fire in an engine compartment is best extinguished with carbon dioxide gas (CO2) and by（）.
    A

    completely closing the compartment

    B

    closing the compartment except for the ventilators

    C

    leaving the compartment open to the air

    D

    increasing the air flow to the compartment by blowers


    正确答案： C
    解析： 暂无解析

  • 第21题：

    单选题
    The purpose of the deck seal in an inert gas system is to prevent（）.
    A

    flammable vapors from entering machinery space

    B

    flue gas escaping to atmosphere

    C

    inert gas escaping to atmosphere

    D

    air entering inert gas system


    正确答案： D
    解析： 暂无解析

  • 第22题：

    单选题
    An inert gas system on a tanker should be used to（）.
    A

    prevent the generation of flammable or combustible gas in tanks

    B

    blow out cargo lines to prevent the build up of gas concentrations

    C

    dilute tank atmospheres to keep gas concentrations below the lower explosive limit

    D

    prevent fires in the pumproom by continually displacing flammable vapors


    正确答案： C
    解析： 暂无解析

  • 第23题：

    单选题
    Generally，the first action in extinguishing an LFG fire caused by escaping gas is to（）.
    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


    正确答案： D
    解析： 暂无解析

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