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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
参考答案
更多 “ 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 ” 相关考题
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单选题Which compensates for errors introduced when the vessel heels over（）.A
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Move the quadrantal spheres closer to the compassB
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Remove some of the Flinders barD
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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
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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 spheresB
Heeling magnet first，then the Flinders bar and spheresC
Flinders bar first，then the spheres and heeling magnetD
Spheres first，then the Flinders bar and heeling magnet
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单选题The quadrantal spheres are used to（）.A
Remove deviation on the intercardinal headingsB
Remove deviation on the cardinal compass headingsC
Remove heeling errorD
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单选题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
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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 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
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the compass heading is in line with the lubber's lineB
there is no lost motion in the gimbal ringsC
no change of heading by compass is observed if you raise and lower the heeling magnetD
the gimbal rings do not strike the compass frame when they are tilted
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单选题When adjusting a magnetic compass for error，a deviation table should be made（）.A
before correcting for any deviationB
after correcting for variationC
after adjusting the fore-and-aft and athwartships permanent magnetsD
before the quadrantal correctors are placed on the compass
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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 ironB
change in the magnetic field when the vessel inclines from verticalC
permanent magnetism of the vesselD
magnetic fields caused by electrical currents in the vicinity
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overtakeB
fixC
highlightD
suspend
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