更多“The permanent magnetism of a vessel may change in strength due to ______.A.the nature of t ”相关问题
  • 第1题:

    When a vessel changes course from one cardinal heading to another cardinal heading while adjusting the compass,which action should be taken ________.

    A.The course change should be made rapidly to prevent transient induced magnetism while passing the intercardinal headings

    B.After the new heading is reached,the vessel should steam on that course for at least two minutes before the adjustment

    C.During the course change,you should gently tap the compass to remove any error caused by friction on the pivot bearing

    D.After steadying on the new heading,the compass card should be slewed by a magnet and allowed to oscillate freely to remove any gaussin error


    正确答案:B

  • 第2题:

    The Flinders bar and the quadrantal spheres should be tested for permanent magnetism at what interval ________.

    A.They are not subject to permanent magnetism; no check is necessary

    B.Semiannually

    C.Annually

    D.Every five years


    正确答案:C

  • 第3题:

    A vessel that is defined as restricted in her ability to manoeuver is unable to keep out of the way of another vessel due to ______.

    A.her draft

    B.the nature of her work

    C.some exceptional circumstances

    D.a danger of navigation


    正确答案:B
    一艘被规定由于她的操纵能力而不能给她船让路的船,由于工作性质造成的

  • 第4题:

    Magnetism which is present only when the material is under the influence of an external field is called ______.

    A.permanent magnetism

    B.induced magnetism

    C.residual magnetism

    D.terrestrial magnetism


    正确答案:B
    表现为仅仅当材料在外部磁场的影响下才有磁性叫做感应磁性。

  • 第5题:

    单选题
    If a ship is proceeding towards the magnetic equator,the uncorrected deviation due to permanent magnetism().
    A

    increases

    B

    remains the same

    C

    decreases

    D

    is unimportant and may be neglected


    正确答案: B
    解析: 暂无解析

  • 第6题:

    单选题
    When using an ARPA,what should you consider in order to evaluate the information displayed?()
    A

    The target vessel's generated course and speed are based solely on radar inputs

    B

    Navigational constraints may require a target vessel to change course

    C

    The trial maneuver feature will automatically determine a course that will clear all targets

    D

    You cannot determine if a small target has been lost due to sea return


    正确答案: D
    解析: 暂无解析

  • 第7题:

    单选题
    The permanent magnetism of a vessel may change in polarity due to().
    A

    being moored for a long time on one heading

    B

    being struck by lighting

    C

    steaming from the north magnetic hemisphere to the south magnetic hemisphere

    D

    loading a homogenous magnetic cargo such as steel plate,iron bars,etc


    正确答案: D
    解析: 暂无解析

  • 第8题:

    单选题
    When shall the stand-on vessel change course and speed?()
    A

    the stand-on vessel may change course and speed at any time as it has the right of way

    B

    after the give-way vessel sounds one blast in a crossing situation

    C

    when action by the give-way vessel alone cannot prevent collision

    D

    when the two vessels become less than half a mile apart


    正确答案: C
    解析: 暂无解析

  • 第9题:

    单选题
    Due to the nature of a vessel’s construction for a particular trade,it does not fully comply with the provisions of SOLAS. Where will this be indicated?().
    A

    On the Exemption Certificate

    B

    On the reverse of the particular SOLAS certificate affected

    C

    On the face of the Certificate of Inspection

    D

    Nowhere; the vessel must engage in international trade


    正确答案: D
    解析: 暂无解析

  • 第10题:

    单选题
    Permanent magnetism is found in().
    A

    hard iron

    B

    soft iron

    C

    vertical iron only

    D

    horizontal iron only


    正确答案: C
    解析: 暂无解析

  • 第11题:

    单选题
    Due to the nature of a vessel’s construction for a particular trade,it does not fully comply with the provisions of SOLAS. Where will this be indicated? ()
    A

    On the Exemption Certificate

    B

    On the reverse of the particular SOLAS certificate affected

    C

    On the face of the Certificate of Inspection

    D

    Nowhere; the vessel must comply to engage in international trade


    正确答案: C
    解析: 暂无解析

  • 第12题:

    单选题
    Magnets are placed in horizontal trays in the compass binnacle to compensate for the().
    A

    induced magnetism in the vessel's horizontal soft iron

    B

    change in the magnetic field when the vessel inclines from vertical

    C

    permanent magnetism of the vessel

    D

    magnetic fields caused by electrical currents in the vicinity


    正确答案: D
    解析: 暂无解析

  • 第13题:

    The magnetism in the various structures of a ship changing as a result of cruising,vibration,or aging is termed ______.

    A.permanent magnetism

    B.subpermanent magnetism

    C.induced magnetism

    D.variable magnetism


    正确答案:B

  • 第14题:

    A single vertical magnet placed underneath the compass in the binnacle is used to compensate for ______.

    A.The horizontal component of the permanent magnetism

    B.Deviation caused by the vessel's inclination from the vertical

    C.Induced magnetism in the horizontal soft iron

    D.Induced magnetism in the vertical soft iron


    正确答案:B

  • 第15题:

    If a ship is proceeding towards the magnetic equator, the uncorrected deviation due to permanent magnetism ______.

    A.increases

    B.remains the same

    C.decreases

    D.is unimportant and may be neglected


    正确答案:C
    假如船舶正朝着磁赤道航行,未经修正的自差由于永久磁性影响而减少。

  • 第16题:

    单选题
    Your vessel was damaged and initially assumed a significant list and trim; however,further increase has been slow. Based on this data,what should you expect?()
    A

    The slowing is only temporary and the vessel will probably suddenly capsize or plunge from loss of stability due to change in the waterplane area

    B

    The vessel can probably be saved if further flooding can be stopped

    C

    The vessel will continue to slowly list and/or trim due to the free surface effect and free communication effect

    D

    The vessel will suddenly flop to the same or greater angle of list on the other side and may capsize


    正确答案: B
    解析: 暂无解析

  • 第17题:

    单选题
    Water may boil up around the stern of a vessel in a channel due to().
    A

    slack water when upbound

    B

    shallow water

    C

    a cross current

    D

    a head current


    正确答案: B
    解析: 暂无解析

  • 第18题:

    单选题
    This induced magnetism()the permanent magnetism already present in the ship.
    A

    will add to

    B

    will subtract from

    C

    may add to or subtract from

    D

    will not change


    正确答案: D
    解析: 暂无解析

  • 第19题:

    单选题
    The permanent magnetism of a vessel may change in strength due to().
    A

    a collision with another vessel

    B

    being moored on a constant heading for a long period of time

    C

    being struck by lightning

    D

    All of the above


    正确答案: B
    解析: 暂无解析

  • 第20题:

    单选题
    The Flinders bar and the quadrantal spheres should be tested for permanent magnetism at what interval().
    A

    They are not subject to permanent magnetism; no check is necessary

    B

    Semiannually

    C

    Annually

    D

    Every five years


    正确答案: B
    解析: 暂无解析

  • 第21题:

    单选题
    The permanent magnetism of a vessel may change in strength due to().
    A

    the nature of the cargo being carried

    B

    changes in heading

    C

    major structural repair

    D

    All of the above


    正确答案: A
    解析: 暂无解析

  • 第22题:

    单选题
    A ship under construction or major repair will acquire permanent magnetism due to()while sitting stationary in the earth’s magnetic field.
    A

    hammering and jarring

    B

    vibration and pounding

    C

    varying magnetic fields

    D

    stable or permanent magnetism of the ship


    正确答案: B
    解析: 暂无解析

  • 第23题:

    单选题
    A single vertical magnet placed underneath the compass in the binnacle is used to compensate for().
    A

    the horizontal component of the permanent magnetism

    B

    deviation caused by the vessel's inclination from the vertical

    C

    induced magnetism in the horizontal soft iron

    D

    induced magnetism in the vertical soft iron


    正确答案: B
    解析: 暂无解析