单项选择题
How is variation indicated on a small-scale nautical chart?（）.
A.Magnetic compass table
B.Magnetic meridians
C.Isogonic lines
D.Variation is not indicated on small-scale nautical charts
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相关考题
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单项选择题
If（）is shut down for an extended time optimum position fixing will take up to 2 hours after power is reapplied．
A.radar
B.DF
C.Satellite Navigator
D.Automatic Omega Navigator -
单项选择题
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 -
单项选择题
If the compass heading and the magnetic heading are the same then（）.
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
