Before sailing，mariners on duty shall check the headings of magnetic compass by comparison with ______.A.ship's clockB.engine movement recorderC.repeatersD.navigation lights

题目

Before sailing，mariners on duty shall check the headings of magnetic compass by comparison with ______.

A.ship's clock

B.engine movement recorder

C.repeaters

D.navigation lights

相似考题

1.Which one of the followings is incorrect about magnetic compass?______.A.The magentic compass is compulsory on my vesselB.The magentic compass is prone to errorC.The magentic compass is always placed inside steel constructionsD.The magentic compass needs to be calibrated to compensate for local magnetic distortion

2.As operator of a 199 GT towing vessel sailing foreign，it shall be your duty to enter in the Official Logbook or other permanent record ______.A.all information contained on the barge's Certificate of InspectionB.the condition of all towing gear to be usedC.all navigational aids to be usedD.the barges load line and draft readings

3.Which magnetic compass corrector（s）CANNOT be set on a heading of magnetic east or magnetic west ________．A.Heeling magnetB.Flinders barC.Fore-and-aft magnetsD.All of the above can be set on magnetic east or magnetic west headings

4.When stand－by before sailing, the duty engineer and officer should check clock, engine telegraph and rudder, and then write it in the0A.engine room logbookB.vovage logbookc engine room logbook or voyage loglookD.engine room logbook and voyage logbook

更多“Before sailing,mariners on duty shall check the headings of magnetic compass by comparison ”相关问题

  • 第1题：

    Before a magnetic compass is adjusted certain correctors must be checked to ensure that they are free of permanent magnetism．These correctors are the ______．

    A.Fore-and-aft and athwartships magnets

    B.Dip needle and heeling magnet

    C.Heeling magnet and Flinders bar

    D.Flinders bar and quadrantal spheres


    正确答案：D

  • 第2题：

    Deviation is the angle between the ______.

    A.true meridian and the axis of the compass card

    B.true meridian and the magnetic meridian

    C.magnetic meridian and the axis of the compass card

    D.axis of the compass card and the degaussing meridian


    正确答案：C
    自差是磁子午线与罗经盘的轴之间的角。

  • 第3题：

    Magnetic compass deviation______．

    A.varies depending upon the bearing used

    B.is the angular difference between magnetic north and compass north

    C.is published on the compass rose on most nautical charts

    D.is the angular difference between geographic and magnetic meridians


    正确答案：B
    磁罗经自差是磁北与罗北之间的差角。

  • 第4题：

    单选题
    Before sailing，mariners on duty shall check the headings of magnetic compass by comparison with（）.
    A

    ship's clock

    B

    engine movement recorder

    C

    repeaters

    D

    navigation lights


    正确答案： A
    解析： 暂无解析

  • 第5题：

    单选题
    If a magnetic compass is not affected by any magnetic field other than the Earth’s，which statement is TRUE? （）
    A

    Compass error and variation are equal

    B

    Compass north will be true north

    C

    Variation will equal deviation

    D

    There will be no compass error


    正确答案： D
    解析： 暂无解析

  • 第6题：

    单选题
    Deviation is the angle between the（）.
    A

    true meridian and the axis of the compass card

    B

    true meridian and the magnetic meridian

    C

    magnetic meridian and the axis of the compass card

    D

    axis of the compass card and the degaussing meridian


    正确答案： B
    解析： 暂无解析

  • 第7题：

    单选题
    Which magnetic compass corrector（s）CANNOT be set on a heading of magnetic east or magnetic west（）.
    A

    Heeling magnet

    B

    Flinders bar

    C

    Fore-and-aft magnets

    D

    All of the above can be set on magnetic east or magnetic west headings


    正确答案： A
    解析： 暂无解析

  • 第8题：

    单选题
    The principal purpose of magnetic compass adjustment is to（）.
    A

    reduce the variation as much as possible

    B

    reduce the deviation as much as possible

    C

    reduce the magnetic dip as much as possible

    D

    allow the compass bowl to swing freely on its gimbals


    正确答案： A
    解析： 暂无解析

  • 第9题：

    单选题
    If the gyrocompass error is east，what describes the error and the correction to be made to gyrocompass headings to obtain true headings?（）
    A

    The readings are too low (small numerically) and the amount of the error must be added to the compass to obtain true

    B

    The readings are too low and the amount of the error must be subtracted from the compass to obtain true

    C

    The readings are too high (large numerically) and the amount of the error must be added to the compass to obtain true

    D

    The readings are too high and the amount of the error must be subtracted from the compass to obtain true


    正确答案： C
    解析： 暂无解析

  • 第10题：

    单选题
    When stand-by before sailing, the duty engineer and officer should check clock, engine telegraph and rudder, and then write it in the （）
    A

    engine room logbook

    B

    voyage logbook

    C

    engine room logbook or voyage logbook

    D

    engine room logbook and voyage logbook


    正确答案： A
    解析： 暂无解析

  • 第11题：

    单选题
    Magnetic compass deviation（）.
    A

    varies depending upon the bearing used

    B

    is the angular difference between magnetic north and compass north

    C

    is published on the compass rose on most nautical charts

    D

    is the angular difference between geographic and magnetic meridians


    正确答案： B
    解析： 暂无解析

  • 第12题：

    单选题
    As operator of a 199 GT towing vessel sailing foreign，it shall be your duty to enter in the Official Logbook or other permanent record（）.
    A

    all information contained on the barge's Certificate of Inspection

    B

    the condition of all towing gear to be used

    C

    all navigational aids to be used

    D

    the barges load line and draft readings


    正确答案： D
    解析： 暂无解析

  • 第13题：

    Deviation which is maximum on intercardinal compass headings may be removed by the ______．

    A.Flinders bar

    B.Transverse magnets

    C.Fore-and-aft magnets

    D.Soft iron spheres on the sides of the compass


    正确答案：D

  • 第14题：

    If a magnetic compass is not affected by any magnetic field other than the Earth’s which statement is TRUE?______.

    A.Compass error and variation are equal

    B.Compass north will be true north

    C.Variation will equal deviation

    D.There will be no compass error


    正确答案：A
    若磁罗经不受除了地磁意外的任何磁场的影响，哪个叙述是对的？罗经差和磁差一样的。

  • 第15题：

    Magnetic heading differs from compass heading by______．

    A.compass error

    B.true heading

    C.variation

    D.Deviation


    正确答案：D
    磁首向不同于罗经首向在于自差。

  • 第16题：

    单选题
    The magnetic compass magnets are acted on by the horizontal component of the Earth’s total magnetic force. This magnetic force is GREATEST at the（）.
    A

    north magnetic pole

    B

    south magnetic pole

    C

    magnetic prime vertical meridian

    D

    magnetic equator


    正确答案： D
    解析： 暂无解析

  • 第17题：

    单选题
    One hour before sailing, the duty engineer and officer should check （）
    A

    tachometer and engine telegraph

    B

    oil and water reserves

    C

    clock and engine telegraph and test the rudder

    D

    crews


    正确答案： B
    解析： 暂无解析

  • 第18题：

    单选题
    The horizontal angle between the magnetic meridian and the north-south line of the magnetic compass is（）.
    A

    deviation

    B

    variation

    C

    compass error

    D

    dip


    正确答案： C
    解析： 暂无解析

  • 第19题：

    单选题
    Variation in a compass is caused by（）.
    A

    worn gears in the compass housing

    B

    magnetism from the earth's magnetic field

    C

    magnetism within the vessel

    D

    lack of oil in the compass bearings


    正确答案： A
    解析： 暂无解析

  • 第20题：

    单选题
    Before a magnetic compass is adjusted certain correctors must be checked to ensure that they are free of permanent magnetism. These correctors are the（）.
    A

    fore-and-aft and athwartships magnets

    B

    dip needle and heeling magnet

    C

    heeling magnet and Flinders bar

    D

    Flinders bar and quadrantal spheres


    正确答案： C
    解析： 暂无解析

  • 第21题：

    单选题
    The magnetic compass operates on the principle that（）.
    A

    like magnetic poles attract

    B

    unlike magnetic poles repel

    C

    unlike poles attract

    D

    the poles of the compass line up with the geographic poles of the earth


    正确答案： D
    解析： 暂无解析

  • 第22题：

    单选题
    The compass error of a magnetic compass that has no deviation is（）.
    A

    zero

    B

    equal to variation

    C

    eliminated by adjusting the compass

    D

    constant at any geographical location


    正确答案： B
    解析： 暂无解析

  • 第23题：

    单选题
    Deviation which is maximum on intercardinal compass headings may be removed by the（）.
    A

    Flinders bar

    B

    transverse magnets

    C

    fore-and-aft magnets

    D

    soft iron spheres on the sides of the compass


    正确答案： D
    解析： 暂无解析

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