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
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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
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
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When crossing the magnetic equator the（）.
The MOST important feature of the material used for making the binnacle of a standard magnetic compass is that it is（）.
While in drydock your vessel will be belt-gauged.This process involves（）.
By convention，the north seeking ends of a compass’ magnets are colored（）.
The variation for most given areas undergoes（）change，the amount of which is also noted on charts.
A ship under construction or major repair will acquire permanent magnetism due to（）while sitting stationary in the earth’s magnetic field.
Which statement about the Flinders bar of the magnetic compass is CORRECT（）.
Which magnetic compass corrector（s）can be set while the vessel is on a heading of magnetic north or magnetic south（）.
When adjusting a magnetic compass using the fore-and-aft permanent magnets，you should（）.
The quadrantal spheres are used to（）.