单选题How does foam extinguish an oil fire?（）A By cooling the oil below the ignition temperatureB By removing the fuel source from the fireC By excluding the oxygen from the fireD By increasing the weight of the oil

题目
单选题
How does foam extinguish an oil fire?（）
A

By cooling the oil below the ignition temperature

B

By removing the fuel source from the fire

C

By excluding the oxygen from the fire

D

By increasing the weight of the oil

相似考题

1.One of the limitations of foam as an extinguishing agent is that foam ______.A.cannot be made with salt waterB.is heavier than oil and sinks below its surfaceC.is corrosive and a hazard to fire fightersD.conducts electricity

2.The class of fire on which a blanketing effect is essential to extinguish the fire isA.Class 'A'B.Class 'B'C.Class 'C'D.Class 'D'

3.In the event of a small bunker oil spill on deck occurring while bunkering, you should ____.A.wash down the area immediately with a fire hoseB.wash down the area with keroseneC.cover the area with absorbent materialD.cover the area with foam

4.The BEST method of applying foam to a fire is to ______.A.spray directly on the base of the fireB.flow the foam down a nearby vertical surfaceC.sweep the fire with the foamD.spray directly on the surface of the fire

更多“How does foam extinguish an oil fire?（）”相关问题

  • 第1题：

    A foam-type portable fire extinguisher is most useful in fighting a fire in ______.

    A.generators

    B.oil drums

    C.the bridge controls

    D.combustible metals


    正确答案：B
    便携式泡沫灭火器对扑灭油桶着火最有效。

  • 第2题：

    How does foam extinguish an oil fire ?______.

    A.By cooling the oil below the ignition temperature

    B.By removing the fuel souce from the fire

    C.By excluding the oxygen from the fire

    D.By increasing the weight of the oil


    正确答案：C
    泡沫灭火器时怎样灭油火的？通过释放泡沫隔绝空气。

  • 第3题：

    Never extinguish oil and electrical fires with （）.

    • A、water
    • B、foam extinguisher
    • C、CO2 extinguisher
    • D、portable extinguisher

    正确答案:A

  • 第4题：

    单选题
    A foam-type portable fire extinguisher is most useful in fighting a fire in（）.
    A

    generators

    B

    oil drums

    C

    the bridge controls

    D

    combustible metals


    正确答案： C
    解析： 暂无解析

  • 第5题：

    单选题
    An important step in fighting any electrical fire is to（）.
    A

    stop ventilation

    B

    stop the vessel

    C

    de-energize the circuit

    D

    apply water to extinguish the fire


    正确答案： A
    解析： 暂无解析

  • 第6题：

    单选题
    To extinguish an electrical fire, you should use （）.
    A

    mechanical foam

    B

    chemical foam

    C

    carbon dioxide

    D

    soda acid


    正确答案： C
    解析： 暂无解析

  • 第7题：

    单选题
    Removing which will extinguish a fire?（）.
    A

    nitrogen

    B

    Carbon dioxide

    C

    Sodlium

    D

    Oxygen


    正确答案： C
    解析： 暂无解析

  • 第8题：

    单选题
    The four basic components of a fire are fuel, heat, oxygen and a chain reactionWhich of the following statements best describes what must be eliminated to extinguish a fire?（）
    A

    Any one component can be eliminated to extinguish a fire

    B

    Any two components must be eliminated to properly extinguish a fire

    C

    Any three components must be eliminated to properly extinguish a fire

    D

    Ali four components must be eliminated to extinguish any fire


    正确答案： D
    解析： 暂无解析

  • 第9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10题：

    单选题
    The BEST method of applying foam to a fire is to（）.
    A

    spray directly on the base of the fire

    B

    flow the foam down a nearby vertical surface

    C

    sweep the fire with the foam

    D

    spray directly on the surface of the fire


    正确答案： D
    解析： 暂无解析

  • 第11题：

    单选题
    Foam extinguishes a fire mainly by（）.
    A

    cooling

    B

    chemical action

    C

    smothering

    D

    inerting the air


    正确答案： B
    解析： 暂无解析

  • 第12题：

    单选题
    0ne of the limitations of foam as an extinguishing agent is that foam（）.
    A

    cannot be made with salt water

    B

    is heavierthan oil and sinks below its surface

    C

    is corrosive and to fire fighters

    D

    conducts electricity


    正确答案： D
    解析： 暂无解析

  • 第13题：

    A portable foam (stored-pressure type) fire extinguisher would be most useful in combating a fire in ______.

    A.generators

    B.oil drums

    C.the bridge controls

    D.combustible metals


    正确答案：B
    便携式泡沫储备气压式灭火器最适宜扑灭油桶火。

  • 第14题：

    （）extinguish oil and electrical fires with water.

    • A、Do
    • B、Did
    • C、Never
    • D、Isn’t

    正确答案:C

  • 第15题：

    单选题
    A portable foam fire extinguisher is placed in operation by（）
    A

    turning it upside down

    B

    pressing the foam lever

    C

    squeezing the grip handle

    D

    opening the hose valve


    正确答案： C
    解析： 暂无解析

  • 第16题：

    单选题
    What is an advantage of using foam in fire fighting?（）
    A

    It is MOST effective on very hot oil fires where the temperatures of the liquid exceed 100°C (212°F)

    B

    Most foams can be used with dry chemicals to attack a fire by two methods

    C

    Foam is effective on combustible metal fires

    D

    Foam can be made with seawater or fresh water


    正确答案： B
    解析： 暂无解析

  • 第17题：

    单选题
    What is an advantage of using foam in fire fighting?（）
    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


    正确答案： B
    解析： 暂无解析

  • 第18题：

    单选题
    Which statement about firefighting foam is TRUE?（）
    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


    正确答案： A
    解析： 暂无解析

  • 第19题：

    单选题
    You will extinguish a fire when you remove（）.
    A

    nitrogen

    B

    oxygen

    C

    sodium

    D

    carbon dioxide


    正确答案： B
    解析： 暂无解析

  • 第20题：

    单选题
    A fire starts on you vessel while refueling. You should first（）.
    A

    stop the ventilation

    B

    sound the general alarm

    C

    determine the source of the fire

    D

    attempt to extinguish the fire


    正确答案： C
    解析： 暂无解析

  • 第21题：

    单选题
    The usual method of effectively applying foam on a fire is by （）.
    A

    spraying directly on the base of the fire

    B

    flowing the foam down a vertical surface

    C

    sweeping the fire before you with the foam

    D

    spraying directly on the surface of the fire


    正确答案： A
    解析： 暂无解析

  • 第22题：

    单选题
    The class of fire on which a blanketing effect is essential to extinguish the fire is （）.
    A

    class A

    B

    class B

    C

    class C

    D

    class D


    正确答案： D
    解析： 暂无解析

  • 第23题：

    单选题
    A portable foam (stored-pressure type) fire extinguisher would be most useful in combating a fire in（）.
    A

    generators

    B

    oil drums

    C

    the bridge

    D

    combustible metals


    正确答案： C
    解析： 暂无解析

  • 第24题：

    单选题
    In the event of a small bunker oil spill on deck occurring while bunkering, you should （）.
    A

    wash down the area immediately with a fire hose

    B

    wash down the area with kerosene

    C

    cover the area with absorbent material

    D

    cover the area with foam


    正确答案： D
    解析： 暂无解析

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