Chafing gear ______.A.reduces and prevents corrosion of standing riggingB.prevents corrosion of running riggingC.reduces and prevents wear caused by the rubbing of one object against anotherD.protects the body against extreme cold

题目

Chafing gear ______.

A.reduces and prevents corrosion of standing rigging

B.prevents corrosion of running rigging

C.reduces and prevents wear caused by the rubbing of one object against another

D.protects the body against extreme cold

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3.Wear occurring at the tips of the reduction gear teeth is usually the result of ______.A.surface fatigueB.fretting corrosionC.heavy overloadingD.gear misalignment

4.One of the most common causes of reduction gear failure is gear wear caused by scoring as a result ofA.surface fatigue of the gearsB.an inadequate lube oil filmC.plastic flow of the gearsD.fretting corrosion from water

更多“Chafing gear ______.A.reduces and prevents corrosion of standing riggingB.prevents corrosi ”相关问题

  • 第1题：

    A storm is forecast for the area where your vessel is moored. For its safety you should put ______.

    A.more slack in the mooring lines

    B.a strain on the mooring lines

    C.chafing gear on the mooring lines

    D.grease on the mooring lines


    正确答案：C

  • 第2题：

    Chafing gear(防摩擦装置) is used to______．

    A.anchor the boat

    B.pick up heavy loads

    C.protect fiber rope from abrasion

    D.strengthen mooring lines


    正确答案：C
    防磨装置减少和防止由于别的物体摸彩引起的磨损。

  • 第3题：

    Gear box


    正确答案:齿轮箱

  • 第4题：

    控制面板显示EnvTem、GeaOilLev表示：（）

    • A、Gear oil lev switch、Environ temperature
    • B、Gear oil level、Environment temperature
    • C、Gear oil level switch、Environment temperature
    • D、Gear oil level switch、Environment temp

    正确答案:C

  • 第5题：

    单选题
    What is NOT a responsibility of the tankerman in charge of loading an unmanned tank barge? （）
    A

    Enforcement of smoking restrictions

    B

    Restricting vessels from coming alongside the barge

    C

    Insuring that a combustible gas indicator is aboard

    D

    Protecting cargo hose with chafing gear


    正确答案： D
    解析： 暂无解析

  • 第6题：

    单选题
    In astern towing，a tow span，also called the tow bar or towing arch，is used to（）.
    A

    insure that the hawser leads directly aft as it passes over the stern of the towing vessel

    B

    increase the stability of the towing vessel by raising the hawser off the deck

    C

    reduce chafing of the towing hawser

    D

    prevent fouling of the hawser on deck gear located on the stern of the towing vessel


    正确答案： B
    解析： 暂无解析

  • 第7题：

    单选题
    Which of the following is NOT true according to the passage?（）
    A

    Both the main steering gear and the auxiliary steering gear should be operated

    B

    The alarms fitted to the remote control system should be operated

    C

    The emergency generator compartment should be checked

    D

    The communication system between the bridge and the steering gear compartment should be operated


    正确答案： C
    解析： 暂无解析

  • 第8题：

    单选题
    Chafing gear is used to（）.
    A

    anchor the boat

    B

    pick up heavy loads

    C

    protect fiber rope from abrasion

    D

    strengthen mooring lines


    正确答案： A
    解析： 暂无解析

  • 第9题：

    单选题
    Chafing gear is normally used（）.
    A

    for portable fenders

    B

    for ground tackle

    C

    on the inside of the hawsepipe

    D

    on mooring lines


    正确答案： C
    解析： 暂无解析

  • 第10题：

    单选题
    Towlines should be inspected for chafing where the towline（）.
    A

    passes over the stern of the towing vessel

    B

    passes through chocks

    C

    is attached to the disabled vessel

    D

    All of the above


    正确答案： D
    解析： 暂无解析

  • 第11题：

    单选题
    I saw your man not operating the winch gear（）gear.
    A

    in

    B

    by

    C

    of

    D

    against


    正确答案： D
    解析： 暂无解析

  • 第12题：

    单选题
    When a line is subject to wear where it passes through a mooring chock，it should be（）.
    A

    wormed，parceled，and served

    B

    wrapped with heavy tape

    C

    wrapped with chafing gear

    D

    wrapped in leather


    正确答案： C
    解析： 暂无解析

  • 第13题：

    Chafing gear should be placed______．

    A.at all wearing points of mooring lines

    B.around running rigging

    C.on wire rope only forces

    D.at the bitter ends of all standing rigging


    正确答案：A
    防（摩）擦装置应被放在所有系泊缆绳的摩擦点上。

  • 第14题：

    高温腐蚀（钒腐蚀和热腐蚀）（high temperature corrosion）


    正确答案: 高温腐蚀是普通 氧化加上其他污染物反应的综合结果， 通常高温腐蚀有钒腐蚀和热腐蚀（高温硫腐蚀） 两种。 燃料中的钒或硫同钠等在燃烧后形成的化合物， 附着于透平叶片等高温金属表 面， 使金属产生腐蚀的现象。

  • 第15题：

    CORROSION INHIBITOR的中文意思是什么？


    正确答案:防腐剂。

  • 第16题：

    管道防腐（corrosion preventive of pipes）


    正确答案: 为减缓或防止管道在内外介质的化学、电化学作用下或由微生物的代谢活动而被侵蚀和变质的措施。

  • 第17题：

    名词解释题
    管道防腐（corrosion preventive of pipes）

    正确答案： 为减缓或防止管道在内外介质的化学、电化学作用下或由微生物的代谢活动而被侵蚀和变质的措施。
    解析： 暂无解析

  • 第18题：

    单选题
    An advantage of a helical gear pump over a simple gear pump is that the helical gear pump is capable of （）.
    A

    maintaining a steadier speed

    B

    delivering liquids over greater distances

    C

    operating for longer periods of time

    D

    producing a smoother discharge flow


    正确答案： B
    解析： 暂无解析

  • 第19题：

    单选题
    A vessel is “engaged in fishing” when（）.
    A

    her gear extends more than 100 meters from the vessel

    B

    she is using any type of gear，other than lines

    C

    she is using fishing apparatus which restricts her maneuverability

    D

    she has any fishing gear on board


    正确答案： A
    解析： 暂无解析

  • 第20题：

    单选题
    Chafing gear（）.
    A

    reduces and prevents corrosion of standing rigging

    B

    prevents corrosion of running rigging

    C

    reduces and prevents wear caused by the rubbing of one object against another

    D

    protects the body against extreme cold


    正确答案： B
    解析： 暂无解析

  • 第21题：

    单选题
    Chafing gear should be placed（）.
    A

    at all wearing points of mooring lines

    B

    at the bitter ends of all standing rigging

    C

    around running rigging

    D

    on wire rope only


    正确答案： C
    解析： 暂无解析

  • 第22题：

    单选题
    Pitting in the area close to the pitch line and on the same end of each gear tooth of a reduction gear unit would be caused by （）
    A

    corrosion on the gears

    B

    excessive gear speed

    C

    dirt in the oil

    D

    misalignment of the gears


    正确答案： A
    解析： 暂无解析

  • 第23题：

    单选题
    With reference to rules governing steering gear, which one of the following rules is incorrect? （）
    A

    It is required that all ships are provided with two independent steering gear systems that is one main and one auxiliary

    B

    The auxiliary gear could be power operated in passenger ships

    C

    The auxiliary gear must be of adequate strength and sufficient to steer a ship at navigable speed

    D

    All moving parts of the steering gear must be guarded against any possible damage


    正确答案： B
    解析： 暂无解析

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