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
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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
最新試題
When adjusting a magnetic compass using the fore-and-aft permanent magnets，you should（）.
Variation is a compass error that you（）.
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 for error，a deviation table should be made（）.
By convention，the north seeking ends of a compass’ magnets are colored（）.
A vessel is heading magnetic east and its magnetic compass indicates a heading of 086°.Which action should be taken to remove this error during compass adjustment（）.
What is an advantage of the magnetic compass aboard vessels?（）
Which compensates for errors introduced when the vessel heels over（）.
The variation for most given areas undergoes（）change，the amount of which is also noted on charts.
The Flinders bar on a magnetic compass compensates for the（）.