Compass error is equal to the ______.A.deviation minus variationB.variation plus compass courseC.combined variation and deviationD.difference between true and magnetic heading

题目

Compass error is equal to the ______.

A.deviation minus variation

B.variation plus compass course

C.combined variation and deviation

D.difference between true and magnetic heading

相似考题

1.The compass error of a magnetic compass that has no deviation is ______.A.zeroB.equal to variationC.eliminated by adjusting the compassD.constant at any geographical location

2.(接上一题)Account应该实现的方法有（40）。A.xfer（）B.xfer（）、plus（）和minus（）C.check（）、plus（）和minus（）D.xfer（）、evaluation （）、plus（）和minus（）

3.The compass rose on a nautical chart indicates both variation and ______.A.deviationB.annual rate of variation changeC.precessionD.compass error

4.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

更多“Compass error is equal to the ______.A.deviation minus variationB.variation plus compass c ”相关问题

  • 第1题：

    A vessel is heading magnetic north and its magnetic compass indicates a heading of 003°. What action should be taken to remove this error during compass adjustment?

    A.Move the quadrantal spheres closer to the compass

    B.Raise the heeling magnet if the red end is up

    C.Remove some of the Flinders bar

    D.Raise or lower the athwartship magnets


    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：

    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4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5题：

    单选题
    As a vessel changes course to starboard，the compass card in a magnetic compass（）.
    A

    remains aligned with compass north

    B

    also turns to starboard

    C

    first turns to starboard then counterclockwise to port

    D

    turns counterclockwise to port


    正确答案： A
    解析： 暂无解析

  • 第6题：

    单选题
    When a vessel changes course from one cardinal heading to another cardinal heading whilea djusting 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： C
    解析： 暂无解析

  • 第7题：

    单选题
    The compass rose on a nautical chart indicates both variation and （）.
    A

    deviation

    B

    annual rate of variation change

    C

    precession

    D

    compass error


    正确答案： D
    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 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10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11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12题：

    单选题
    Compass error is equal to the（）.
    A

    deviation minus variation

    B

    variation plus compass course

    C

    combined variation and deviation

    D

    difference between true and magnetic heading


    正确答案： A
    解析： 暂无解析

  • 第13题：

    Heeling error is defined as the change of deviation for a heel of ______．

    A.2° while the vessel is on an intercardinal heading

    B.1° while the vessel is on a compass heading of 000°

    C.2° and is constant on all headings

    D.1° while the vessel is on a compass heading of 180°


    正确答案：B

  • 第14题：

    Error may be introduced into a magnetic compass by ______.

    A.making a structural change to the vessel

    B.a short circuit near the compass

    C.belt buckles

    D.All of the above


    正确答案：D
    船舶结构上的改变，罗经附近的短路，带扣都可能引起磁罗经的误差。

  • 第15题：

    Compass should be put on the （）.

    • A、compass deck
    • B、bridge deck
    • C、main deck
    • D、boat deck

    正确答案:A

  • 第16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17题：

    单选题
    （）the repeater compass with the master compass，please.
    A

    Similize

    B

    Clock

    C

    Synchronize

    D

    Position


    正确答案： B
    解析： 暂无解析

  • 第18题：

    单选题
    A vessel is heading magnetic north and its magnetic compass indicates a heading of 003°. What action should be taken to remove this error during compass adjustment? （）
    A

    Move the quadrantal spheres closer to the compass

    B

    Raise the heeling magnet if the red end is up

    C

    Remove some of the Flinders bar

    D

    Raise or lower the athwartship magnets


    正确答案： A
    解析： 暂无解析

  • 第19题：

    单选题
    Variation is a compass error that you（）.
    A

    can correct by adjusting the compass card

    B

    can correct by adjusting the compensating magnets

    C

    can correct by changing the vessel's heading

    D

    cannot correct


    正确答案： A
    解析： 暂无解析

  • 第20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21题：

    单选题
    My gyro-compass error is（）.
    A

    east two degrees

    B

    two degrees east

    C

    two east degrees

    D

    two-degrees east


    正确答案： D
    解析： 暂无解析

  • 第22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23题：

    单选题
    When adjusting a magnetic compass for error，a deviation table should be made（）.
    A

    before correcting for any deviation

    B

    after correcting for variation

    C

    after adjusting the fore-and-aft and athwartships permanent magnets

    D

    before the quadrantal correctors are placed on the compass


    正确答案： A
    解析： 暂无解析

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