更多“()extinguish oil and electrical ”相关问题
  • 第1题:

    Loran-C is which type of system ________.

    A.Reflected electron

    B.Electrical radiation

    C.Quarterpoint electrical navigation

    D.Hyperbolic radio navigation


    正确答案:D

  • 第2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:C
    在扑灭任何电器火灾中一个重要的步骤是切断电路。

  • 第3题:

    Water is used to put out ().

    • A、oil fire
    • B、electrical fire
    • C、common fire
    • D、special fire

    正确答案:C

  • 第4题:

    单选题
    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
    解析: 暂无解析

  • 第5题:

    单选题
    When a rescuer finds an electrical burn victim in the vicinity of live electrical equipment or wiring,his first step is to().
    A

    flush water over any burned area of the patient

    B

    apply ointment to the burned areas on the patient

    C

    get assistance to shut down electrical power in the area

    D

    remove the patient from the vicinity of the live electrical equipment or wiring


    正确答案: A
    解析: 暂无解析

  • 第6题:

    单选题
    What type of oil is not covered in the oil pollution law?()
    A

    mineral oil

    B

    machinery oil being transferred for shipboard use

    C

    crude oil unrefined

    D

    normal bilge oil and water


    正确答案: A
    解析: 暂无解析

  • 第7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8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9题:

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

    oxygen

    B

    carbon dioxide

    C

    H2O

    D

    H2


    正确答案: A
    解析: 暂无解析

  • 第10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11题:

    单选题
    During the PSC inspection, under the provisions of SOLAS 74, which one may not be regarded as clear grounds for ships’ detainment?()
    A

    failure of the proper operation of the main steering gear

    B

    failure of the proper operation of electrical installations

    C

    leakage of domestic water pump

    D

    insulation of exhaust pipes in engine room contaminated by oil


    正确答案: C
    解析: 暂无解析

  • 第12题:

    单选题
    An ABC dry chemical fire extinguisher would be LEAST effective against a fire in().
    A

    a mattress

    B

    spilled liquids such as oil or paint

    C

    high voltage electrical gear

    D

    a trash can


    正确答案: A
    解析: 暂无解析

  • 第13题:

    OIL-IN-WATER are ______.

    A.sediment of oil in water

    B.oil dissolvents in water

    C.solid oil aggregates

    D.droplets of oil suspended in water


    正确答案:D

  • 第14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15题:

    油压千斤顶()

    • A、oil jack
    • B、oil lift
    • C、oil top
    • D、oil pump

    正确答案:A

  • 第16题:

    单选题
    Never extinguish oil and electrical fires with ().
    A

    water

    B

    foam extinguisher

    C

    CO2 extinguisher

    D

    portable extinguisher


    正确答案: A
    解析: 暂无解析

  • 第17题:

    单选题
    Cargo transfer operations on a tank vessel need NOT be stopped when().
    A

    a tug comes alongside while the tanker is loading grade

    B

    and E cargoes B. a large,fresh oil spill is discovered immediately adjacent to the side of the tanker

    C

    there is an electrical storm in the vicinity

    D

    there is a fire on the dock or on a nearby vessel


    正确答案: D
    解析: 暂无解析

  • 第18题:

    单选题
    In general, the oil mist detectors include a built-in heating unit and a compact plug for electrical connectionThe function of heating unit is to ()
    A

    avoid false alarms as a result of condensing water vapor

    B

    avoid danger of frost under very cold weather

    C

    reduce the viscosity of the crankcase atmosphere in order to improve the fluidity

    D

    keep the temperature of the oil mist detectors in an appropriate range


    正确答案: A
    解析: 暂无解析

  • 第19题:

    单选题
    Which of the following conditions indicates the dilution of diesel engine lube oil by fuel oil?()
    A

    Water discharging from the water outlet of the lube oil purifier

    B

    Fuel oil discharging from the water outlet of the lube oil purifier

    C

    Lube oil discharging from the water outlet of the lube oil purifier

    D

    A change in the lube oil viscosity


    正确答案: C
    解析: 暂无解析

  • 第20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21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22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23题:

    单选题
    Except in rare cases,it is impossible to extinguish a shipboard fire by().
    A

    removing the heat

    B

    removing the oxygen

    C

    removing the fuel

    D

    interrupting the chain reaction


    正确答案: D
    解析: 暂无解析