Carbon dioxide as a fire fighting agent has which advantage over other agents?A.It causes minimal damageB.It is safer for personnelC.It is cheaperD.It is most effective on a per unit basis

题目

Carbon dioxide as a fire fighting agent has which advantage over other agents?

A.It causes minimal damage

B.It is safer for personnel

C.It is cheaper

D.It is most effective on a per unit basis

相似考题

1.One of the disadvantages of using carbon dioxide to extinguish a fire in an enclosed space isA.the 'snow' which is sometimes discharged along with the gas is toxicB.prolonged exposure to high concentrations of CO2 gas causes suffocationC.rapid dissipation of the CO2 vaporD.the CO2 gas is lighter than air and a large amount is required to extinguish a fire near the deck

2.Which statement concerning carbon dioxide is FALSE ________．A.It displaces the oxygen in the airB.It cannot be seenC.It cannot be smelledD.It is safe to use near personnel in a confined space

3.The most effective way of applying carbon dioxide from a portable extinguisher to a fire is by ______．A.Forming a cloud cover over the flamesB.Directing the gas at the base of the flames in a slow sweeping motionC.Discharging the carbon dioxide into the heart of the flamesD.Bouncing the discharge off an adjacent bulkhead just above the burning surface

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“Carbon dioxide as a fire fighting agent has which advantage over other agents?A.It causes ”相关问题

  • 第1题：

    One disadvantage of using regular dry chemical（sodium bicarbonate）in firefighting is that ______．

    A.It can break down under high heat and emit noxious fumes

    B.It will decompose under prolonged storage and lose its effectiveness

    C.Fire has been known to flash back over the surface of an oil fire

    D.It is ineffective in fighting fires in high-voltage electrical equipment


    正确答案：C

  • 第2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3题：

    As compared to carbon dioxide, dry chemical has which advantage? ______.

    A.Cleaner

    B.Effective on metal fires

    C.Greater range

    D.More cooling effect


    正确答案：C
    与CO2相比，干粉灭火器有哪些优点？作用距离更远.

  • 第4题：

    单选题
    As compared to carbon dioxide，dry chemical has which advantage?（）.
    A

    Cleaner

    B

    Effective on metal fires

    C

    Greater range

    D

    More cooling effect


    正确答案： C
    解析： 暂无解析

  • 第5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6题：

    单选题
    For which of the listed classes of fire combinations would carbon dioxide be most suitable as the extinguishing agent （）.
    A

    Class A and class B

    B

    Class B and class C

    C

    Class A and class C

    D

    Class C, class D, and class E


    正确答案： B
    解析： 暂无解析

  • 第7题：

    单选题
    When fighting an oil or gasoline fire in the bilge，which of the following should NOT be used?（）
    A

    Foam

    B

    Solid stream water nozzle

    C

    All-purpose nozzle

    D

    Carbon dioxide


    正确答案： D
    解析： 暂无解析

  • 第8题：

    单选题
    Carbon dioxide as a fire fighting agent has which advantage over other agents?（）.
    A

    It causes minimal damage

    B

    It is safe for personnel

    C

    It is cheaper

    D

    It is most effective on a per unit basis


    正确答案： C
    解析： 暂无解析

  • 第9题：

    单选题
    Which of the following statements is true concerning Halon 1301 fire extinguishing equipment?（）
    A

    The agent is considered nontoxic at room temperature in low concentrations

    B

    The agent is less effective than carbon dioxide

    C

    Halon primarily extinguishes the fire by cooling

    D

    The agent cannot be used on electrical fires because it leaves a residue


    正确答案： B
    解析： 暂无解析

  • 第10题：

    单选题
    Which of the listed extinguishing agents is NOT suitable for fighting a liquid paint fire?（）
    A

    Dry chemical

    B

    Foam

    C

    Water

    D

    Carbon dioxide


    正确答案： A
    解析： 暂无解析

  • 第11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：

    ______, 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14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15题：

    单选题
    Which extinguishing agent is recommended in the Chemical Data Guide for use on a carbon disulfide fire?（）
    A

    Alcohol foam

    B

    Dry chemical

    C

    Chemical foam

    D

    Water fog


    正确答案： C
    解析： 暂无解析

  • 第16题：

    单选题
    One of the disadvantages of using carbon dioxide to extinguish a fire in an enclosed space is （）.
    A

    the snow which is sometimes discharged along with the gas is toxic

    B

    prolonged exposure to high concentrations of  C02 gas causes suffocation

    C

    rapid dissipation of the C02 vapor

    D

    the C02 gas is lighter than air and a large amount is required to extinguisha fire near the deck


    正确答案： A
    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
    An advantage of a dry chemical over a carbon dioxide fire extinguish is its（）.
    A

    greater range

    B

    effective on all types of fires

    C

    cleanliness

    D

    All of the above


    正确答案： D
    解析： 暂无解析

  • 第19题：

    单选题
    As compared to carbon dioxide,dry chemical has which advantage?（）.
    A

    Cleaner

    B

    Effective

    C

    Greater range

    D

    More cooling effect


    正确答案： A
    解析： 暂无解析

  • 第20题：

    单选题
    Which fire fighting agent has the greatest capacity for absorbing heat?（）
    A

    water

    B

    dry chemical

    C

    foam

    D

    CO2


    正确答案： B
    解析： 暂无解析

  • 第21题：

    单选题
    What is NOT a characteristic of carbon dioxide fire-extinguishing agents?（）
    A

    Effective even if ventilation is not shut down

    B

    Will not deteriorate in storage

    C

    Non-corrosive

    D

    Effective on electrical equipment


    正确答案： C
    解析： 暂无解析

  • 第22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23题：

    单选题
    Which fire extinguishing agent has the greatest capacity for absorbing heat?（）
    A

    Water

    B

    Foam

    C

    Dry chemical

    D

    Carbon Dioxide


    正确答案： A
    解析： 暂无解析

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