单选题Wires that are installed in air returns above a ceiling must be（）A fire proofB fiberglass coatedC plenum ratedD teflon coated

题目
单选题
Wires that are installed in air returns above a ceiling must be（）
A

fire proof

B

fiberglass coated

C

plenum rated

D

teflon coated

相似考题

1.Oceangoing dry bulk cargo vessels over 1000 GT must have approved combination-type fire nozzles at all ______．A.Fire stations aboard the vessel，except for those in open deck areas weatherdeck and cargo hold fire stationsB.Interior fire stationsC.Engine room fire stationsD.All of the above

2.What is the term for the space that exists above a drop ceiling or below a raised floor and that isused for air return？（）A、NEMA areaB、plenum areaC、DAS areaD、extended areaE、RF special area

3. According to the following statement， can you tell me which term is described？（） It is the air return for an air conditioned system. In most buildings， the area above a drop ceiling orunder a raised floor is used as the air return （source of air） for the air conditioning. Those drop ceiling and raised floors are also where wire is often installed. If wire and cable is installed in a dropceiling or raised floor， it is out of sight. If that cable were burning， it would give off toxic fumes.These would be fed to the rest of the building by the air conditioner. As a result， people could beinjured even though they are a long way from the fire.A、DAS areaB、plenum areaC、extended areaD、RF special area

4.这些绑扎工具必须要再次上紧。（）A、These lashing tools must be tightened again.B、These lashing wires must be tightened again.C、These lashing bars must be secured again.D、These cargo wires must be loosened again.

更多“单选题Wires that are installed in air returns above a ceiling must be（）A fire proofB fiberglass coatedC plenum ratedD teflon coated”相关问题

  • 第1题：

    Wires that are installed in air returns above a ceiling must be（）

    • A、fire proof
    • B、fiberglass coated
    • C、plenum rated
    • D、teflon coated

    正确答案:C

  • 第2题：

    单选题
    Before using a fixed CO2 system to fight an engine room fire，you must（）.
    A

    secure the engine room ventilation

    B

    secure the machinery in the engine room

    C

    evacuate all engine room personnel

    D

    All of the above


    正确答案： C
    解析： 暂无解析

  • 第3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4题：

    单选题
    Oceangoing dry bulk cargo vessels over 1000 GT must have approved combination-type fire nozzles at all（）.
    A

    fire stations aboard the vessel，except for those in open deck areas weatherdeck and cargo hold fire stations

    B

    interior fire stations

    C

    engine room fire stations

    D

    all of the above


    正确答案： C
    解析： 暂无解析

  • 第5题：

    单选题
    In order to start a large, low-speed, main propulsion diesel engine on high viscosity fuel after an extended shutdown, the （）
    A

    fuel must be preheated

    B

    intake air should be preheated

    C

    lube oil outlet temperature should be increased 20℃ above normal

    D

    none of the above


    正确答案： B
    解析： 暂无解析

  • 第6题：

    单选题
    In order to reverse the rotation of a two-stroke/cycle loop scavenged, direct reversing, propulsion diesel engine, the cam positions must be changed for the （）.
    A

    starting air and fuel pumps

    B

    piston cooling pumps

    C

    exhaust valves

    D

    all of the above


    正确答案： A
    解析： 暂无解析

  • 第7题：

    单选题
    Which space(s) on your cargo vessel must have a fire detection system?（）
    A

    Any compartment containing explosives

    B

    Any compartment adjacent to one containing explosives

    C

    Enclosed spaces which are specially suitable for vehicles

    D

    All of the above


    正确答案： D
    解析： 暂无解析

  • 第8题：

    单选题
    What is the term for the space that exists above a drop ceiling or below a raised floor and that isused for air return？（）
    A

    NEMA area

    B

    plenum area

    C

    DAS area

    D

    extended area

    E

    RF special area


    正确答案： E
    解析： 暂无解析

  • 第9题：

    单选题
    Each hand portable fire extinguisher on a ship must be marked with（）.
    A

    the name of the unit on which it is located

    B

    the date that it was installed on the unit

    C

    the names of the individuals qualified to use it

    D

    an identification number different from other extinguishers on the unit


    正确答案： A
    解析： 暂无解析

  • 第10题：

    单选题
    On a ship，a fixed carbon dioxide or other approved system must be installed（）.
    A

    where oil or chemical drums are stored

    B

    in all battery storage locations

    C

    in paint lockers

    D

    in all of the above locations


    正确答案： D
    解析： 暂无解析

  • 第11题：

    单选题
    这些绑扎工具必须要再次上紧。（）
    A

    These lashing tools must be tightened again.

    B

    These lashing wires must be tightened again.

    C

    These lashing bars must be secured again.

    D

    These cargo wires must be loosened again.


    正确答案： B
    解析： 暂无解析

  • 第12题：

    单选题
    All the cargo wires must be greased （）.
    A

    well

    B

    good

    C

    nice

    D

    perfect


    正确答案： C
    解析： 暂无解析

  • 第13题：

    单选题
    The air reservoirs must have （） fitted to prevent rupture in the event of fire.
    A

    high pressure alarm

    B

    fire alarm

    C

    extinguishers

    D

    fusible plugs


    正确答案： B
    解析： 暂无解析

  • 第14题：

    单选题
    According to the following statement， can you tell me which term is described？（） It is the air return for an air conditioned system. In most buildings， the area above a drop ceiling orunder a raised floor is used as the air return （source of air） for the air conditioning. Those drop ceiling and raised floors are also where wire is often installed. If wire and cable is installed in a dropceiling or raised floor， it is out of sight. If that cable were burning， it would give off toxic fumes.These would be fed to the rest of the building by the air conditioner. As a result， people could beinjured even though they are a long way from the fire.
    A

    DAS area

    B

    plenum area

    C

    extended area

    D

    RF special area


    正确答案： B
    解析： 暂无解析

  • 第15题：

    单选题
    A Certificate of Inspection issued to a small passenger vessel describes（）.
    A

    the mimimum fire extinguishing equipment，lifejackets，survival and rescue craft she must carry

    B

    the name of the managing operator

    C

    any special conditions or restrictions on her operation

    D

    All the above


    正确答案： A
    解析： 暂无解析

  • 第16题：

    单选题
    Which statement regarding the site-survey process is correct？（）
    A

    In a multifloor building， the access point layout from the survey of one floor can be directly applied to the remaining floors

    B

    Access points can be installed in the same place on every floor， without worrying about co-channelinterference

    C

    You can survey with a Cisco AIR-ANT5959 in a plenum environment

    D

    Identify all hazardous and restricted areas that might require extra or special survey and installationwork


    正确答案： B
    解析： 暂无解析

  • 第17题：

    单选题
    With one or more cylinders out of operation, the engine speed must be reduced because（）
    A

    in such cases, the air supply is no longer optimal, the thermal load will be higher

    B

    governor hunting will occur

    C

    torsional vibrations as other mechanical vibrations may occur

    D

    all of the above are correct


    正确答案： A
    解析： 暂无解析

  • 第18题：

    单选题
    Individual wires，used in systems greater than 50 volts,（）.
    A

    should be supported at 24 inch intervals with plastic tie wraps

    B

    should never be located in a tank

    C

    must be installed in conduit

    D

    All of the above


    正确答案： C
    解析： 暂无解析

  • 第19题：

    单选题
    All the cargo wires must be （）well.
    A

    washed

    B

    greased

    C

    cleaned

    D

    scraped


    正确答案： A
    解析： 暂无解析

  • 第20题：

    单选题
    Wires that are installed in air returns above a ceiling must be（）
    A

    fire proof

    B

    fiberglass coated

    C

    plenum rated

    D

    teflon coated


    正确答案： D
    解析： 暂无解析

  • 第21题：

    单选题
    Which condition is necessary for a substance to burn?（）
    A

    The temperature of the substance must be equal to or above its fire point

    B

    The air must contain oxygen in sufficient quantity

    C

    The mixture of vapors with air must be within the explosive range

    D

    All of the above


    正确答案： D
    解析： 暂无解析

  • 第22题：

    单选题
    For a fire to begin there must be present a combustible material, oxygen or air to （）combustion, and a source of heat at a temperature high enough to start combustion.
    A

    begin

    B

    support

    C

    last

    D

    extinguish


    正确答案： A
    解析： 暂无解析

  • 第23题：

    单选题
    Which of the following is the MOST likely cause of a low wireless signal after an internal wireless adapter on a laptop was replaced?（）
    A

    The wireless card must be calibrated to the laptop.

    B

    The correct preshared encryption key must be installed to boost the signal.

    C

    The MAC address of the new wireless card will have to be added to the WAP to get the full signal.

    D

    The antenna wires for the wireless card were not attached.


    正确答案： D
    解析： 暂无解析

  • 第24题：

    单选题
    The record of tests and inspection of fire fighting equipment on board a ship must include（）.
    A

    the name of the person conducting the test

    B

    the weight of the charge

    C

    recommendations for the next test

    D

    All of the above


    正确答案： A
    解析： 暂无解析

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