The high-velocity fog tip used with the all-purpose fire fighting nozzle should always be ______．A.Attached by a chainB.Coated with heavy grease to prevent corrosionC.Painted red for identity as emergency equipmentD.Stored in the clip at each fire station

题目

The high-velocity fog tip used with the all-purpose fire fighting nozzle should always be ______．

A.Attached by a chain

B.Coated with heavy grease to prevent corrosion

C.Painted red for identity as emergency equipment

D.Stored in the clip at each fire station

相似考题

1.PULL THE STRINGS AROUND YOUR WAIST AND TIE IN FRONT. This description is likely used in ______.A.fire fighting operationsB.salvage operationsC.cargo operationsD.manoeuvering operations

2.A fire hose with a nozzle attached must be connected to each hydrant except when exposed to heavy weather or when the ______．A.Fire hose might be damaged by cargo operationsB.Vessel is in portC.Fire-main system is not chargedD.Fire pumps are used for purposes other than supplying water to the fire main

3.If a firefighting situation calls for low-velocity fog you would ______．A.order the engine room to reduce pressure on the fire pumpB.put the lever on an all-purpose fire nozzle all the way forwardC.attach a low-velocity fog applicator with the nozzle shut downD.put the lever on an all-purpose fire nozzle all the way back

4.The difference in water spray pattern between the high-velocity tip and low-velocity applicator used with the all-purpose nozzle is due to ______.A.a difference in water pressureB.the method of breaking up the water streamC.the length of the applicatorD.All of the above

更多“The high－velocity fog tip used with the all－purpose fire fighting nozzle should always be ”相关问题

  • 第1题：

    Which of the following statements is FALSE concerning the proper procedure in handling a fire hose ________．

    A.A 1.5 inch hose should be deployed with a minimum of a nozzleman and hoseman

    B.Back-up hosemen should be positioned wherever the hose makes a significant turn

    C.The fire hose should be partially charged before deploying it from the fire station

    D.The nozzleman should always hold the nozzle with one hand on top，to prevent kickback


    正确答案：C

  • 第2题：

    单选题
    If a firefighting situation calls for low-velocity fog you would（）.
    A

    order the engine room to reduce pressure on the fire pump

    B

    put the lever on an all-purpose fire nozzle all the way forward

    C

    attach a low-velocity fog applicator with the nozzle shut down

    D

    put the lever on an all-purpose fire nozzle all the way back


    正确答案： B
    解析： 暂无解析

  • 第3题：

    单选题
    Water fog from an all-purpose nozzle may be used to（）.
    A

    fight an electrical fire

    B

    fight a magnesium fire

    C

    eliminate smoke from a compartment

    D

    All of the above


    正确答案： B
    解析： 暂无解析

  • 第4题：

    单选题
    The all-purpose nozzle will produce a fog spray when you（）.
    A

    pull the nozzle handle all the way back toward the operator

    B

    pull the nozzle handle back to a position where the handle is perpendicular to the plane of the nozzle

    C

    push the nozzle handle forward as far as it will go

    D

    insert a fog applicator between the fire hose and nozzle


    正确答案： B
    解析： 暂无解析

  • 第5题：

    单选题
    High-velocity fog（）.
    A

    is a finer，more diffuse water spray than low-velocity fog

    B

    requires that the water pressure be no greater than 60 psi

    C

    produces an effective fog pattern no more than 6 feet beyond the nozzle

    D

    extinguishes a fire by absorbing heat and reducing the supply of oxygen


    正确答案： B
    解析： 暂无解析

  • 第6题：

    单选题
    The difference in water spray pattern between the high-velocity tip and low-velocity applicator used with the all-purpose nozzle is due to（）.
    A

    a difference in water pressure

    B

    the method of breaking up the water stream

    C

    the length of the applicator

    D

    All of the above


    正确答案： D
    解析： 暂无解析

  • 第7题：

    单选题
    The spray of water in low-velocity fog will have（）.
    A

    greater range than high-velocity fog

    B

    lesser range than high-velocity fog

    C

    about the same range as high-velocity fog

    D

    greater range than a solid stream


    正确答案： D
    解析： 暂无解析

  • 第8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9题：

    单选题
    When using a high-velocity fog stream in a passageway，the possibility of a blow back must be guarded against. Blow back is most likely to occur when（）.
    A

    pressure builds up in the nozzle which causes a surge of water

    B

    the only opening in a passageway is the one from which the nozzle is being advanced

    C

    pressure in the fire hose drops below 100 psi

    D

    a bulkhead collapses due to heat and pressure


    正确答案： D
    解析： 暂无解析

  • 第10题：

    单选题
    The basic training in fire prevention and fire fighting should include the practical elements which should allow the trainees to acquire the ability to （）.
    A

    use self-contained breathing apparatus

    B

    use various types of portable fire extinguishers

    C

    effect a rescue in a smoke-filled space wearing breathing apparatus

    D

    All of the above


    正确答案： C
    解析： 暂无解析

  • 第11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12题：

    单选题
    The preferred agent used in fighting a helicopter crash fire is（）.
    A

    CO2

    B

    dry chemical

    C

    water

    D

    foam


    正确答案： C
    解析： 暂无解析

  • 第13题：

    单选题
    When fighting a spreading fire resulting from a broken fuel line, you should FIRST （）.
    A

    look for a CO2 extinguisher

    B

    use a soda acid extinguisher

    C

    shut off the fuel supply

    D

    smother the fire with rags


    正确答案： C
    解析： 暂无解析

  • 第14题：

    单选题
    On the all-purpose nozzle，the position of the valve when the handle is all the way forward is（）.
    A

    shut

    B

    fog

    C

    solid stream

    D

    spray


    正确答案： B
    解析： 暂无解析

  • 第15题：

    单选题
    The straight stream capability of an all-purpose nozzle is used in fighting a class A fire to（）.
    A

    shield fire fighters from radiant heat

    B

    break up burning material

    C

    get the most water possible on the fire

    D

    drive heat and smoke ahead of the fire fighters


    正确答案： C
    解析： 暂无解析

  • 第16题：

    单选题
    The basic training in fire prevention and fire fighting should include the theoretical elements which should cover （）.
    A

    the three elements of fire and explosion

    B

    lower and upper flammable limits

    C

    classification of flies and applicable extinguishing agents

    D

    All of the above


    正确答案： A
    解析： 暂无解析

  • 第17题：

    单选题
    A high-velocity fog stream can be used in fire fighting situations to drive heat and smoke ahead of the fire fighters in a passageway. This technique should only be used when（）.
    A

    using a 2-1/2 inch hose

    B

    there is an outlet for the smoke and heat

    C

    the fire is totally contained by the ship's structure

    D

    at least two fog streams can be used


    正确答案： D
    解析： 暂无解析

  • 第18题：

    单选题
    If a fire occurs in the boiler room as a result of a leaking fuel line, you should FIRST （）.
    A

    notify the engineer on watch

    B

    isolate and secure the piping

    C

    throw sand on the fire

    D

    extinguish the fire using a combination nozzle with applicator


    正确答案： D
    解析： 暂无解析

  • 第19题：

    单选题
    A combination or all-purpose nozzle produces（）.
    A

    low-velocity fog only

    B

    a solid stream only

    C

    a solid stream and foam

    D

    a solid stream and fog


    正确答案： C
    解析： 暂无解析

  • 第20题：

    单选题
    A fire hose with a nozzle attached must be connected to each hydrant except when exposed to heavy weather or when the（）.
    A

    fire hose might be damaged by cargo operations

    B

    vessel is in port

    C

    fire-main system is not charged

    D

    fire pumps are used for purposes other than supplying water to the fire main


    正确答案： B
    解析： 暂无解析

  • 第21题：

    单选题
    When fighting an electrical fire, you should first （）.
    A

    stop ventilation to the area

    B

    stop the vessel

    C

    secure electricity to the circuit

    D

    apply CO2 to the fire


    正确答案： D
    解析： 暂无解析

  • 第22题：

    单选题
    Halon extinguishers used on a class C fire should be directed at the（）.
    A

    base of the equipment

    B

    top of the equipment

    C

    power source

    D

    source of the fire


    正确答案： D
    解析： 暂无解析

  • 第23题：

    单选题
    The 12-foot low-velocity fog applicator（）.
    A

    has a spray pattern 12 feet in diameter

    B

    can be used in conjunction with both 1-1/2 inch and 2-1/2 inch all-purpose nozzles

    C

    has a 90°bend at its discharge end

    D

    has a screw thread end which connects to the all-purpose nozzle


    正确答案： B
    解析： 暂无解析

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