Mooring winch should be equipped with mechanical brakes which are capable of holding ______.A.half the breaking strength of the mooring lineB.the full breaking strength of the mooring lineC.the maximum expected tension of the mooring lineD.50% over the wo

题目

Mooring winch should be equipped with mechanical brakes which are capable of holding ______.

A.half the breaking strength of the mooring line

B.the full breaking strength of the mooring line

C.the maximum expected tension of the mooring line

D.50% over the working tension of the mooring line


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参考答案和解析
正确答案:B
更多“Mooring winch should be equipped with mechanical brakes which are capable of holding _____ ”相关问题
  • 第1题:

    A liferaft which has inflated bottom-up on the water ______.

    A.should be righted by standing on the carbon dioxide cylinder,holding the righting straps and leaning backwards

    B.should be righted by standing on the life line,holding the righting straps leaning backwards

    C.will right itself when the canopy tube inflates

    D.must be cleared of the buoyant equipment before it will right itself


    正确答案:A

  • 第2题:

    Given the same water depth and line tension, the holding power of a 19 pound / foot wire rope mooring system in comparison to the holding power of a 90 pound / foot chain mooring system will be ______.

    A.weaker

    B.equal

    C.greater

    D.Indeterminable


    正确答案:A
    考虑到同样的吃水和绳的张力,用一个19英寸的钢丝缆系泊系统与一个90英寸的相比较弱一些。

  • 第3题:

    In order to pay out or slack a mooring line which is under strain, you should ______.

    A.sluice the line

    B.surge the line

    C.stopper the line

    D.slip the line


    正确答案:B
    为了松出或放松受力的系泊缆绳,你应放松缆绳。

  • 第4题:

    单选题
    A mechanical davit is designed to automatically().
    A

    position the boat at the embarkation station

    B

    lift the boat off the inboard chocks

    C

    energize the winch for the falls

    D

    set the brake on the winch


    正确答案: B
    解析: 暂无解析

  • 第5题:

    单选题
    Most totally enclosed lifeboats are equipped with which of the following? ()
    A

    Tanks for the storage of drinking water

    B

    Ballast tanks to prevent the boat from capsizing

    C

    A hydraulic start diesel engine

    D

    Auxiliary mechanical propulsion (Fleming gear)


    正确答案: C
    解析: 暂无解析

  • 第6题:

    单选题
    If you are given the job of adding hydraulic fluid to a mooring winch, and are not certain as to the type of fluid to use, you should ().
    A

    add fluid that is the same color as the fluid in the reservoir

    B

    add turbine oil because it is always a good substitute

    C

    add any oil that has the same viscosity as the hydraulic fluid

    D

    check the winch manufacturers instruction book


    正确答案: C
    解析: 暂无解析

  • 第7题:

    单选题
    The crane jib is raised and lowered by means of ()
    A

    a mooring winch

    B

    a hoisting winch

    C

    a slewing winch

    D

    a luffing winch


    正确答案: D
    解析: 暂无解析

  • 第8题:

    单选题
    The duty of a deck winch is to lift and lower a load by means of a fixed rope on ().
    A

    a warp end

    B

    a mooring winch

    C

    a worm gear

    D

    a barrel


    正确答案: A
    解析: 暂无解析

  • 第9题:

    单选题
    Increasing the load on an engine equipped with a constant speed mechanical governor, will cause the engine speed to initially ().
    A

    increase

    B

    decrease

    C

    fluctuate

    D

    remain constant


    正确答案: A
    解析: 暂无解析

  • 第10题:

    单选题
    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: B
    解析: 暂无解析

  • 第11题:

    单选题
    Which statement is TRUE about placing the eyes of two mooring lines on the same bollard?()
    A

    Put one line at the low point and one at the high point of the bollard so they don't touch

    B

    Take the eye of the second line up through the eye of the first line before putting the second line on the bollard

    C

    Never put two mooring lines on the same bollard

    D

    The mooring line forward should be put on the bollard first


    正确答案: C
    解析: 暂无解析

  • 第12题:

    单选题
    Modern marine diesel engines equipped with mechanical fuel injection operate on a combustion phase within the cycle which is()
    A

    entirely constant pressure

    B

    entirely constant temperature

    C

    a combination of constant volume and constant pressure

    D

    a combination of constant temperature and constant pressure


    正确答案: C
    解析: 暂无解析

  • 第13题:

    Which device is designed to automatically hold the load if power should fail to an electric winch?

    A.Pneumatic brake

    B.Electromagnetic brake

    C.Hand brake

    D.Motor controller


    正确答案:B

  • 第14题:

    If two mooring lines are to be placed on the same bollard,which method is BEST?______.

    A.Place the eye from the forward line on the bollard and then place the eye from the second line directly over the first

    B.It makes no difference how the lines are placed

    C.Place the eye from either line on the bollard,and then bring the eye of the other line up through the eye of the first,and place it on the bollard

    D.Place both eyes on the bollard,in any manner,but lead both lines to the same winch head on the vessel and secure them on the winch


    正确答案:C
    假如两个系泊缆绳被套在同一个缆桩上面哪种方法最好?第一支缆绳系妥后,将第二支的眼环穿过第一个眼环后在系到缆桩上面。

  • 第15题:

    On a Windows XP machine, which of the following settings should be configured to allow draggingof files without holding the mouse button?()

    • A、ScrollLock
    • B、StickyKeys
    • C、MouseKeys
    • D、ClickLock

    正确答案:D

  • 第16题:

    单选题
    In order to pay out or slack a mooring line which is under strain,you should().
    A

    sluice the line

    B

    surge the line

    C

    stopper the line

    D

    slip the line


    正确答案: C
    解析: 暂无解析

  • 第17题:

    单选题
    A “stopper” is().
    A

    a short length of line used for temporarily holding another line

    B

    a snatch block for handling a topping lift

    C

    an engine order telegraph

    D

    the brake on a cargo winch


    正确答案: D
    解析: 暂无解析

  • 第18题:

    单选题
    In which of the listed hydraulic systems will the installation of an oil cooler be necessary?()
    A

    Constant tension mooring winch system

    B

    Hatch cover system

    C

    Watertight door system

    D

    Internal combustion engine hydraulic starter system


    正确答案: D
    解析: 暂无解析

  • 第19题:

    单选题
    The clutch band of a constant tensioning mooring winch must be set up tight enough to drive the winch drum and should slip only when ().
    A

    excessive loads are placed on the winch

    B

    minimum pull is being exerted by the winch

    C

    automatic operation of the winch is desired

    D

    wire is being retrieved at the maximum rate


    正确答案: D
    解析: 暂无解析

  • 第20题:

    单选题
    An anchor winch should be equipped with mechanical brakes capable of holding().
    A

    half the breaking strength of the mooring line

    B

    the full breaking strength of the mooring line

    C

    the maximum expected tension of the mooring line

    D

    50% over the working tension of the mooring line


    正确答案: C
    解析: 暂无解析

  • 第21题:

    单选题
    If two mooring lines are to be placed on the same bollard,which method is BEST?().
    A

    Place the eye from the forward line on the bollard and then place the eye from the second line directly over the first

    B

    It makes no difference how the lines are placed

    C

    Place the eye from either line on the bollard,and then bring the eye of the other line up through the eye of the first,and place it on the bollard

    D

    Place both eyes on the bollard,in any manner,but lead both lines to the same winch head on the vessel and secure them on the winch


    正确答案: D
    解析: 暂无解析

  • 第22题:

    单选题
    Given the same water depth and line tension,the holding power of a 19 pound/foot wire rope mooring system in comparison to the holding power of a 90 pound/foot chain mooring system will be().
    A

    weaker

    B

    equal

    C

    greater

    D

    indeterminable


    正确答案: A
    解析: 暂无解析

  • 第23题:

    单选题
    Which device is designed to automatically hold the load if power should fail to an electric winch?()
    A

    Pneumatic brake

    B

    Electromagnetic brake

    C

    Hand brake

    D

    Motor controller


    正确答案: B
    解析: 暂无解析