A carbon dioxide fire extinguisher should be recharged ______.A.at least annuallyB.whenever it is below its required weightC.only if the extinguisher has been usedD.before every safety inspection

题目

A carbon dioxide fire extinguisher should be recharged ______.

A.at least annually

B.whenever it is below its required weight

C.only if the extinguisher has been used

D.before every safety inspection

相似考题

1.Which of the listed fire extinguishers cannot be easily recharged aboard ship?A.Soda acidB.Carbon dioxideC.Dry chemicalD.cartridge-operated Foam

2.In the event of fire in a machinery space，______.A.the fixed carbon dioxide system should be used only when all other means of extinguishment have failedB.the fixed carbon dioxide system should be used immediately，as it is the most efficient means of extinguishmentC.water in any form should not be used as it will spread the fireD.the space should be opened 5 minutes after flooding CO2 to prevent injury to personnel

3.A squeeze-grip type carbon dioxide portable fire extinguisher has been partially discharged.It should be ______.A.replaced in its proper location if weight loss is no more than 15%B.replaced in its proper location if weight loss is no more than 25%C.labeled empty and recharged as soon as possibleD.labeled empty and replaced in its proper location regardless of weight

4.Which of the following is (are)an advantage of a dry chemical extinguisher over a carbon dioxide extinguisher？The dry chemical extinguisher：Ⅰ．Has a greater range．Ⅱ．Provides a heat shield for the operator．A.ⅠonlyB.ⅡonlyC.Both Ⅰand ⅡD.Neither Ⅰ nor Ⅱ

更多“A carbon dioxide fire extinguisher should be recharged ______.A.at least annuallyB.wheneve ”相关问题

  • 第1题：

    The most effective way of applying carbon dioxide from a portable extinguisher to a fire is by ______．

    A.Forming a cloud cover over the flames

    B.Directing the gas at the base of the flames in a slow sweeping motion

    C.Discharging the carbon dioxide into the heart of the flames

    D.Bouncing the discharge off an adjacent bulkhead just above the burning surface


    正确答案：B

  • 第2题：

    ______, as the chemical extinguisher agent, should be used for an electric fire.

    A.dry chemical or foam

    B.foam or soda acid

    C.carbon dioxide or foam

    D.carbon dioxide or dry chemical


    正确答案：D
    二氧化碳或干粉灭火器作为化学灭火器，用于扑灭电器火灾。

  • 第3题：

    An advantage of an ABC dry chemical over a carbon dioxide fire extinguisher is ______.

    A.lack of toxicity

    B.the multipurpose extinguishing ability

    C.burn-back protection

    D.cooling ability


    正确答案：B
    ABC干粉灭火器较二氧化碳灭火器时一个多功能灭火器。

  • 第4题：

    单选题
    A fuel line breaks, sprays fuel on the hot exhaust manifold, and catches fire. Your first action should be to（）.
    A

    Batten down the engine room

    B

    start the fire pump

    C

    apply carbon dioxide to the fire

    D

    shut off the fuel supply


    正确答案： D
    解析： 暂无解析

  • 第5题：

    单选题
    The discharge from a carbon dioxide fire extinguisher should be directed（）.
    A

    at the base of the flames

    B

    at the center of the flames

    C

    to the lee side of the flames

    D

    over the tops of the flames


    正确答案： A
    解析： 暂无解析

  • 第6题：

    单选题
    Weight is considered during the periodic required inspection and servicing of（）.
    A

    CO2 (carbon dioxide) fire extinguishers

    B

    foam fire extinguishers

    C

    water (stored pressure) fire extinguishers

    D

    All of the above


    正确答案： B
    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
    The type of extinguisher which should be used for an electricity fire is（）.
    A

    foam or soda acid

    B

    dry chemical or foam

    C

    carbon dioxide or dry chemical

    D

    carbon dioxide or foam


    正确答案： A
    解析： 暂无解析

  • 第9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10题：

    单选题
    A carbon dioxide fire extinguisher should be recharged（）.
    A

    at least annually

    B

    whenever it is below its required weight

    C

    only if the extinguisher has been used

    D

    before every safety inspection


    正确答案： A
    解析： 暂无解析

  • 第11题：

    单选题
    Which portable fire extinguisher is normally recharged in a shore facility?（）
    A

    Dry chemical (cartridge-operated)

    B

    Water (cartridge-operated)

    C

    Water (pump tank)

    D

    Carbon dioxide


    正确答案： A
    解析： 暂无解析

  • 第12题：

    单选题
    Why should you wear a self-contained breathing apparatus before entering the engine room after the fixed CO2 system has been discharged to combat a major fire?（）
    A

    Because carbon dioxide dilutes the oxygen concentration in the atmosphere and may cause asphyxiation

    B

    Because carbon dioxide breaks down in a fire into carbon monoxide which may cause blood poisoning in the person breathing this gas

    C

    Because carbon dioxide is a colorless and odorless gas that becomes highly toxic in the presence of high temperatures and will quickly incapacitate a person exposed to this gas

    D

    This action is unnecessary as carbon dioxide is not poisonous nor toxic but is a relatively harmless gas


    正确答案： C
    解析： 暂无解析

  • 第13题：

    Which statement concerning the application of dry chemical powder is FALSE ________．

    A.At temperatures of less than 32℉，the extinguisher must be recharged more often

    B.When possible，the fire should be attacked from windward

    C.The stream should be directed at the base of the fire

    D.Directing the stream into burning flammable liquid may cause splashing


    正确答案：A

  • 第14题：

    An advantage of a dry chemical over a carbon dioxide fire extinguisher is its ______.

    A.greater range

    B.effectiveness on all types of fires

    C.cleanliness

    D.All of the above


    正确答案：A
    干粉灭火器优于CO2灭火器的优点是它更远的作用距离。

  • 第15题：

    单选题
    When must a dry chemical fire extinguisher be recharged?（）
    A

    After each use

    B

    When the air temperature exceeds 90°F

    C

    Every 6 months

    D

    Every 12 months


    正确答案： B
    解析： 暂无解析

  • 第16题：

    单选题
    A squeeze-grip type carbon dioxide portable fire extinguisher has been partially discharged. It should be（）.
    A

    replaced in its proper location if weight loss is no more than 15%

    B

    replaced in its proper location if weight loss is no more than 25%

    C

    labeled empty and recharged as soon as possible

    D

    labeled empty and replaced in its proper location regardless of weight


    正确答案： C
    解析： 暂无解析

  • 第17题：

    单选题
    An advantage of an ABC dry chemical over a carbon dioxide extinguisher is（）.
    A

    lack of toxicity

    B

    the multipurpose extinguishing ability

    C

    burn-back protection

    D

    cooling ability


    正确答案： D
    解析： 暂无解析

  • 第18题：

    单选题
    （）as the chemical extinguisher agent, should be used for a an electric fire.
    A

    Dry chemical or foam

    B

    Foam or soda acid

    C

    carbon dioxide or foam

    D

    carbon dioxide or dry chemical


    正确答案： D
    解析： 暂无解析

  • 第19题：

    单选题
    Portable carbon dioxide fire extinguishers should be sent ashore to be recharged （）.
    A

    when the remaining charge volume is less than 90 percent of the required VOLUME

    B

    at each inspection for certification

    C

    at each annual inspection

    D

    when the weight loss exceeds 10% of weight of charge


    正确答案： A
    解析： 暂无解析

  • 第20题：

    单选题
    A squeeze-grip type carbon dioxide portable fire extinguisher has been partially discharged. It should be（）.
    A

    labeled empty and recharged as soon as possible

    B

    replaced in its proper location if weight loss is no more than 25%

    C

    replaced in its proper location regardless of weight

    D

    replaced in its proper location if weight loss is no more than 15%


    正确答案： C
    解析： 暂无解析

  • 第21题：

    单选题
    Which of the following statements is true concerning carbon dioxide when used as a fire extinguishing agent?（）
    A

    Carbon dioxide is corrosive when exposed to fire

    B

    Carbon dioxide should be applied slowly to a large engine room fire

    C

    Its total cooling effect is far greater than water

    D

    Its smothering effect is excellent for class B fires


    正确答案： A
    解析： 暂无解析

  • 第22题：

    单选题
    A carbon dioxide fire extinguisher has been partially discharged, and should be immediately （）.
    A

    tagged and restowed properly in its rack

    B

    weighed and the charge loss recorded

    C

    given to the chief engineer for recharging

    D

    tagged empty and stowed separately from charged extinguishers


    正确答案： D
    解析： 暂无解析

  • 第23题：

    单选题
    An advantage of a dry chemical over a carbon dioxide fire extinguisher is its（）.
    A

    greater range

    B

    effectiveness on all types of fires

    C

    cleanliness

    D

    All of the above


    正确答案： A
    解析： 暂无解析

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