How do you operate a portable CO2 fire extinguisher?______.A.Point the horn downB.Turn cylinder upside-downC.Break the rupture discD.Pull pin, squeeze grip

题目

How do you operate a portable CO2 fire extinguisher?______.

A.Point the horn down

B.Turn cylinder upside-down

C.Break the rupture disc

D.Pull pin, squeeze grip

相似考题

1.A foam-type portable fire extinguisher would be most useful in combating a fire in ______.A.solid materials such as wood or bales of fiberB.flammable liquidsC.a piece of electrical equipmentD.combustible metallic solid

2.A portable foam (stored-pressure type) fire extinguisher would be most useful in combating a fire in ______.A.generatorsB.oil drumsC.the bridge controlsD.combustible metals

3.After using a CO2 portable extinguisher, it should be ______.A.put back in service if some CO2 remainsB.hydrostatically testedC.retaggedD.Recharged

4.A portable dry chemical fire extinguisher discharges by ______.A.gravity when the extinguisher is turned upside downB.pressure from a small CO2 cartridge on the extinguisherC.air pressure from the hand pump attached to the extinguisherD.pressure from the reaction when water is mixed with the chemical

更多“How do you operate a portable CO2 fire extinguisher?______.A.Point the horn downB.Turn cyl ”相关问题

  • 第1题：

    In order to discharge a CO2 portable fire extinguisher, the operator must FIRST ______.

    A.invert the CO2 extinguisher

    B.squeeze the two trigger handles together

    C.remove the locking pin

    D.open the discharge valve


    正确答案：C
    为了施放便携式CO2灭火器，操作者必须首先拔除锁定销。

  • 第2题：

    Close all fire doors and use the （）（干粉灭火器）.

    • A、dry powder extinguisher
    • B、foam extinguisher
    • C、CO2 extinguisher
    • D、portable extinguisher

    正确答案:A

  • 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
    How do you operate a portable CO2 fire extinguisher?（）
    A

    Point the horn down

    B

    Turn cylinder upside-down

    C

    Break the rupture disc

    D

    Pull pin，squeeze grip


    正确答案： B
    解析： 暂无解析

  • 第6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 controls

    D

    combustible metals


    正确答案： A
    解析： 暂无解析

  • 第7题：

    单选题
    On a class B fire，which portable fire extinguisher would be the LEAST desirable?（）
    A

    Carbon dioxide

    B

    Water (stored pressure)

    C

    Dry chemical

    D

    Foam


    正确答案： D
    解析： 暂无解析

  • 第8题：

    单选题
    If only I _____ how to operate a computer as you do!
    A

    had known

    B

    would know

    C

    should know

    D

    knew


    正确答案： A
    解析：
    句意：要是我像你一样懂得怎样操作电脑就好了。If only引导的句子，与wish用法一样，对现在的情况表示虚拟，用过去时，故选D。

  • 第9题：

    单选题
    关闭所有防火门并使用干粉灭火器。（）
    A

    Close all fire doors and use the dry powder extinguisher.

    B

    Close all fire doors and use the foam extinguisher.

    C

    Close all fire doors and use the CO2 extinguisher.

    D

    Close all fire rooms and use the dry powder extinguisher.


    正确答案： C
    解析： 暂无解析

  • 第10题：

    单选题
    Which types of portable extinguisher should you watch for the reflash of the fire?（）
    A

    foam and water

    B

    CO2 and dry chemical

    C

    dry chemical and water

    D

    foam and CO2


    正确答案： A
    解析： 暂无解析

  • 第11题：

    单选题
    Which is the proper method of determining whether a portable CO2 fire extinguisher needs recharging?（）
    A

    Check the tag to see when the extinguisher was last charged

    B

    Release a small amount of CO2; if the CO2 discharges，the extinguisher is acceptable

    C

    Weigh the extinguisher and compare the weight against that stamped on the valve

    D

    Recharge the extinguisher at least once each year


    正确答案： A
    解析： 暂无解析

  • 第12题：

    单选题
    When fighting a fire with a portable dry chemical fire extinguisher，the stream should be directed（）.
    A

    over the top of the flames

    B

    off a bulkhead into the fire

    C

    in front of the fire

    D

    at the base of the fire


    正确答案： C
    解析： 暂无解析

  • 第13题：

    Fire in the cabins. Close all fire doors and use the （）powder extinguisher.

    • A、dry
    • B、wet
    • C、foam
    • D、portable

    正确答案:A

  • 第14题：

    （）is best for electrical fire.

    • A、Dry extinguisher
    • B、Power extinguisher
    • C、A+B
    • D、CO2 extinguisher

    正确答案:A

  • 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
    To determine if a CO2 fire extinguisher is fully charged，you would（）.
    A

    Operate the trigger valve

    B

    Weigh the extinguisher

    C

    Test with a pressure gauge

    D

    Read the date of last test


    正确答案： A
    解析： 暂无解析

  • 第17题：

    单选题
    If a CO2 fire extinguisher is not readily available, which of the listed fire extinguishers would be best suited to combat a small electrical fire in a switchboard?（）
    A

    Dry chemical

    B

    Halon

    C

    Low velocity fog

    D

    Steam


    正确答案： B
    解析： 暂无解析

  • 第18题：

    单选题
    Which portable fire extinguisher should be used on a class C fire on board a vessel?（）
    A

    Carbon dioxide

    B

    Water (stored pressure)

    C

    Foam

    D

    Carbon tetrachloride


    正确答案： D
    解析： 暂无解析

  • 第19题：

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

    soild materials such as wood or bales of fiber

    B

    flammable liquids

    C

    a piece of electrical equipment

    D

    combustible metallic solids


    正确答案： C
    解析： 暂无解析

  • 第20题：

    单选题
    A portable dry chemical fire extinguisher discharges by（）.
    A

    gravity when the extinguisher is turned upside down

    B

    pressure from a small CO2 cartridge on the extinguisher

    C

    air pressure from the hand pump attached to the extinguisher

    D

    pressure from the reaction when water is mixed with the chemical


    正确答案： A
    解析： 暂无解析

  • 第21题：

    单选题
    When fighting a fire on a bulkhead using a portable carbon dioxide extinguisher，the stream should be directed at the（）.
    A

    base of the flames，moving the horn from side to side，following the flames upward as they diminish

    B

    top of the flaming area，moving the horn from side to side，following the flames downward as they diminish

    C

    center of the flaming area，moving the horn vertically from top to bottom

    D

    bottom of the flaming area，moving the horn vertically to the top following the flames upward as they diminish


    正确答案： A
    解析： 暂无解析

  • 第22题：

    单选题
    If a small fire initially breaks out in the engine room bilges, in which of the following sequences should the fire extinguishing agents or systems be used?（）
    A

    Fixed CO2,semi-portable CO2, then hand portable CO2

    B

    Semi-portable CO2, fixedCO2, then hand portable CO2

    C

    Hand portable, semi-portable CO2, then as a last resort the fixed CO2 system

    D

    Hand portable, fixed CO2, then as a last resort the semi-portable CO2


    正确答案： D
    解析： 暂无解析

  • 第23题：

    单选题
    How do you operate a portable C02 fire extinguisher?（）.
    A

    Point the horn down

    B

    Turn cylinder upside-down

    C

    Break the rupture disc

    D

    Pull pin, squeeze grip


    正确答案： D
    解析： 暂无解析

相关内容