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Compass deviation is caused by ______.A.magnetism from the earth’s magnetic fieldB.misalignment of the compassC.magnetism within the vesselD.a dirty compass housing

题目

Compass deviation is caused by ______.

A.magnetism from the earth’s magnetic field

B.misalignment of the compass

C.magnetism within the vessel

D.a dirty compass housing

相似考题

1.When an azimuth of the Sun has been taken and the deviation of the standard magnetic compass computed，the watch officer should record the results ______.A.in the vessel's Official LogbookB.on the compass deviation cardC.in the compass deviation logD.on a Napier diagram

2.A single vertical magnet placed underneath the compass in the binnacle is used to compensate for ______．A.The horizontal component of the permanent magnetismB.Deviation caused by the vessel's inclination from the verticalC.Induced magnetism in the horizontal soft ironD.Induced magnetism in the vertical soft iron

3.Deviation is the angle between the ______.A.true meridian and the axis of the compass cardB.true meridian and the magnetic meridianC.magnetic meridian and the axis of the compass cardD.axis of the compass card and the degaussing meridian

4.Permanent magnetism is caused by ______.A.operation of electrical equipment and generators on board shipB.the earth's magnetic field affecting the ship's hard iron during constructionC.the horizontal component of the earth's magnetic field acting on the horizontal soft ironD.the vertical component of the earth's magnetic field acting on the vertical soft iron

更多“Compass deviation is caused by ______.A.magnetism from the earth’s magnetic fieldB.misalig ”相关问题

  • 第1题：

    Deviation in a compass is caused by the ______.

    A.vessel’s geographic position

    B.vessel’s heading

    C.earth’s magnetic field

    D.influence of the magnetic materials of the vessel


    正确答案：D
    罗经的自差是由于船舶材料磁场的影响引起的。

  • 第2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3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4题：

    单选题
    Compass deviation is caused by（）.
    A

    magnetism from the earth's magnetic field

    B

    misalignment of the compass

    C

    magnetism within the vessel

    D

    a dirty compass housing


    正确答案： A
    解析： 暂无解析

  • 第5题：

    单选题
    Which statement about the Flinders bar of the magnetic compass is CORRECT（）.
    A

    It compensates for the error caused by the vertical component of the Earth's magnetic field

    B

    It compensates for error caused by the heeling of a vessel

    C

    It compensates for quadrantal deviation

    D

    It is only needed in equatorial waters


    正确答案： C
    解析： 暂无解析

  • 第6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7题：

    单选题
    If the compass heading and the magnetic heading are the same then（）.
    A

    the deviation has been offset by the variation

    B

    there is something wrong with the compass

    C

    the compass is being influenced by nearby metals

    D

    there is no deviation on that heading


    正确答案： A
    解析： 暂无解析

  • 第8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9题：

    单选题
    What is an advantage of the magnetic compass aboard vessels?（）
    A

    Compass error is negligible at or near the earth's magnetic poles

    B

    It does not have to be checked as often

    C

    It is reliable due to it's essential simplicity

    D

    All points on the compass rose are readily visible


    正确答案： D
    解析： 暂无解析

  • 第10题：

    单选题
    The total magnetic effects which cause deviation of a vessel’s compass can be broken down into a series of components which are referred to as（）.
    A

    divisional parts

    B

    coefficients

    C

    fractional parts

    D

    equations


    正确答案： A
    解析： 暂无解析

  • 第11题：

    单选题
    The error in a magnetic compass caused by the vessel’s magnetism is called（）.
    A

    variation

    B

    deviation

    C

    compass error

    D

    bearing error


    正确答案： B
    解析： 暂无解析

  • 第12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13题：

    If the compass heading and magnetic-heading are the same then ______.

    A.the deviation has been offset by the variation

    B.there is something wrong with the compass

    C.the compass is being influenced by nearby metals

    D.there is no deviation on that heading


    正确答案：D
    假如没有被接上管子，船上的每一个低速喷嘴均必须被存储被用于接上灭火水龙带的消防栓旁边。

  • 第14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15题：

    单选题
    Deviation is caused by（）.
    A

    changes in the earth's magnetic field

    B

    nearby magnetic land masses or mineral deposits

    C

    magnetic influence inherent to that particular vessel

    D

    the magnetic lines of force not coinciding with the lines of longitude


    正确答案： B
    解析： 暂无解析

  • 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
    Deviation in a compass is caused by the（）.
    A

    vessel's geographic position

    B

    vessel's heading

    C

    earth's magnetic field

    D

    influence of the magnetic materials of the vessel


    正确答案： C
    解析： 暂无解析

  • 第18题：

    单选题
    If the magnetic heading is greater than the compass heading，the deviation is（）.
    A

    east

    B

    west

    C

    north

    D

    south


    正确答案： B
    解析： 暂无解析

  • 第19题：

    单选题
    During the transition of the Earth’s magnetic field _____.
    A

    the compass will become useless

    B

    man and animals will be confused as to directions

    C

    the magnetic strength of the Earth will disappear

    D

    the magnetic strength of the Earth will be stronger


    正确答案： A
    解析：
    第三段第四句开始：磁场的转换给人类和动物带来许多问题。宇航员和卫星会遇到很多困难，依靠磁场指示方向迁徙的鸟类、鱼类和其他动物会在迁徙中失去方向。

  • 第20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21题：

    单选题
    What is the basic principle of the magnetic compass（）.
    A

    Magnetic materials of the same polarity repel each other and those of opposite polarity attract

    B

    The Earth's magnetic lines of force are parallel to the surface of the Earth

    C

    Magnetic meridians connect points of equal magnetic variation

    D

    The compass needle（s）will，when properly compensated，lie parallel to the isogonic lines of the Earth


    正确答案： C
    解析： 暂无解析

  • 第22题：

    单选题
    Permanent magnetism is caused by（）.
    A

    operation of electrical equipment and generators on board ship

    B

    the earth's magnetic field affecting the ship's hard iron during construction

    C

    the horizontal component of the earth's magnetic field acting on the horizontal soft iron

    D

    the vertical component of the earth's magnetic field acting on the vertical soft iron


    正确答案： D
    解析： 暂无解析

  • 第23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

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