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When crossing the magnetic equator the ______．A.Flinders bar should be invertedB.Heeling magnet should be invertedC.The quadrantal spheres should be rotated 180°D.Flinders bar should be moved to the opposite side of the binnacle

题目

When crossing the magnetic equator the ______．

A.Flinders bar should be inverted

B.Heeling magnet should be inverted

C.The quadrantal spheres should be rotated 180°

D.Flinders bar should be moved to the opposite side of the binnacle

相似考题

1.Spring tides occur______．A.when the moon is new or fullB.when the moon and sun have declination of the same nameC.only when the moon and sun are on the same sides of the earthD.at the beginning of spring when the sun is over the equator

2.When we are crossing the streets, we must look out ()cars.A、toB、forC、atD、of

3.Conditions for crossing a rough bar are usually best at ______.A.low water slackB.high water slackC.high water ebbD.high water flood

4.When crossing the street, try to use the zebra crossing! don’t ________。A.purrB.honk the hornC.shuffleD.jaywalk

更多“When crossing the magnetic equator the ______.A.Flinders bar should be invertedB.Heeling m ”相关问题

  • 第1题：

    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 Logbook

    B.on the compass deviation card

    C.in the compass deviation log

    D.on a Napier diagram


    正确答案：C

  • 第2题：

    When relieving the helm，the new helmsman should know the ______．

    A.Course per magnetic steering compass

    B.Gyro error

    C.Variation

    D.Maximum rudder angle previously used


    正确答案：A

  • 第3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4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5题：

    单选题
    Spring tides occur（）.
    A

    when the moon is new or full

    B

    when the moon and sun have declination of the same name

    C

    only when the moon and sun are on the same sides of the earth

    D

    at the beginning of spring when the sun is over the equator


    正确答案： C
    解析： 暂无解析

  • 第6题：

    单选题
    The greatest directive force is exerted on the magnetic compass when the（）.
    A

    needles are nearly in line with the meridian

    B

    vessel is near the magnetic poles

    C

    variation is near zero

    D

    vessel is near the magnetic equator


    正确答案： A
    解析： 暂无解析

  • 第7题：

    单选题
    Which statement concerning the lashings of containers with solid bar or wire rope lashings is TRUE? （）
    A

    Stack weights should be less when using a solid bar lashing as compared to a wire lashing

    B

    Stack heights may be increased when using a solid bar lashing

    C

    Stack heights should be reduced when using a solid bar lashing

    D

    Solid bars should be used for lashing the first tier only，with wire lashings on the higher tier(s)


    正确答案： C
    解析： 暂无解析

  • 第8题：

    单选题
    When steering a tow downstream around the shape of a sand bar，and staying on the proper side of the buoys，an operator should be cautious of（）.
    A

    eddies under the bar

    B

    swift current under the bar causing loss of control

    C

    cross-currents pushing the tow away from the bar

    D

    cross-currents pushing the tow into the bar


    正确答案： A
    解析： 暂无解析

  • 第9题：

    单选题
    When crossing the magnetic equator the（）.
    A

    Flinders bar should be inverted

    B

    Heeling magnet should be inverted

    C

    The quadrantal spheres should be rotated 180°

    D

    Flinders bar should be moved to the opposite side of the binnacle


    正确答案： A
    解析： 暂无解析

  • 第10题：

    单选题
    When a magnetic compass is not in use for a prolonged period of time it should（）.
    A

    be shielded from direct sunlight

    B

    be locked into a constant heading

    C

    have any air bubbles replaced with nitrogen

    D

    have the compensating magnets removed


    正确答案： C
    解析： 暂无解析

  • 第11题：

    单选题
    When relieving the helm，the new helmsman should know the（）.
    A

    Course per magnetic steering compass

    B

    Gyro error

    C

    Variation

    D

    Maximum rudder angle previously used


    正确答案： C
    解析： 暂无解析

  • 第12题：

    单选题
    At the magnetic equator there is no induced magnetism in the vertical soft iron because（）.
    A

    the lines of force cross the equator on a 0°-180°alignment

    B

    the quadrantal error is 0°

    C

    there is no vertical component of the Earth's magnetic field

    D

    the intercardinal headings have less than 1°


    正确答案： A
    解析： 暂无解析

  • 第13题：

    Which statement concerning the lashings of containers with solid bar or wire rope lashings is TRUE ________．

    A.Stack weights should be less when using a solid bar lashing as compared to a wire lashing

    B.Stack heights may be increased when using a solid bar lashing

    C.Stack heights should be reduced when using a solid bar lashing

    D.Solid bars should be used for lashing the first tier only，with wire lashings on the higher tier（s）


    正确答案：A

  • 第14题：

    You are about to go to sea and adjust the magnetic compass．To expedite the adjustment at sea，in what order should the following dockside adjustments be made ________．

    A.Flinders bar first，then the heeling magnet and spheres

    B.Heeling magnet first，then the Flinders bar and spheres

    C.Flinders bar first，then the spheres and heeling magnet

    D.Spheres first，then the Flinders bar and heeling magnet


    正确答案：C

  • 第15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16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17题：

    单选题
    Except for N-S courses，and E-W courses on the equator，a great circle track between two points，when compared to a rhumb line track between the same two points，will（）.
    A

    always be nearer to the equator

    B

    always be nearer to the elevated pole

    C

    be nearer to the pole in the Northern Hemisphere and nearer to the equator in the Southern Hemisphere

    D

    be nearer to the pole or the equator depending on the latitudes of the arrival and departure positions


    正确答案： B
    解析： 暂无解析

  • 第18题：

    单选题
    What is TRUE when operating in fog and other vessels are detected by radar?（）
    A

    you should make an ample change to port for a vessel crossing on the starboard bow

    B

    You should maneuver in ample time if a close-quarters situation is developing

    C

    You should determine the course and speed of all radar contacts at six minutes intervals

    D

    Long-range scanning will provide early warning of all other vessels within the radar’s range


    正确答案： C
    解析： 暂无解析

  • 第19题：

    单选题
    According to the passage, _____.
    A

    we should not worry about the transition of the Earth’s magnetic field

    B

    the Earth’s magnetic field will not change for at least 2000 years

    C

    the Earth’s magnetic field has decreased its strength rapidly

    D

    the transition of the Earth’s magnetic field can be controlled by modern science


    正确答案： C
    解析：
    第五段一开始：无论新的研究发现什么，公众也不必为此惊慌。即使是磁场转移已经开始，它可能需要2000年才能完成。

  • 第20题：

    单选题
    You are about to go to sea and adjust the magnetic compass．To expedite the adjustment at sea，in what order should the following dockside adjustments be made（）.
    A

    Flinders bar first，then the heeling magnet and spheres

    B

    Heeling magnet first，then the Flinders bar and spheres

    C

    Flinders bar first，then the spheres and heeling magnet

    D

    Spheres first，then the Flinders bar and heeling magnet


    正确答案： A
    解析： 暂无解析

  • 第21题：

    单选题
    When using the radar for navigating（）.
    A

    the best fix is obtained by using a tangent bearing and a range

    B

    and using two radar ranges for a fix，the objects of the ranges should be close to reciprocal bearings

    C

    and using ranges，the most rapidly changing range should be measured last

    D

    and crossing a radar range of one object with the visual bearing of a second object，the two objects should be 80°to 110°apart


    正确答案： C
    解析： 暂无解析

  • 第22题：

    单选题
    Conditions for crossing a rough bar are usually best at （）.
    A

    low water slack

    B

    high water slack

    C

    high water ebb

    D

    high water flood


    正确答案： C
    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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