Variation is not constant; it is different with every change in().
A、speed
B、vessel heading
C、geographical location
D、cargo
A、speed
B、vessel heading
C、geographical location
D、cargo
A、Magnetic compass table B、Magnetic meridians C、Isogonic lines D、Variation is not indicated on small-scale nautical charts
A、Magnetic compass table B、Magnetic meridians C、Isogonic lines D、Variation is not indicated on small-scale nautical charts
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
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
A、Gray lines on the uppermost inset chart B、Red lines on the main body of the chart C、In parenthesis on the lines of equal magnetic variation D、Annual rate of change is not shown
A、Gray lines on the uppermost inset chart B、Red lines on the main body of the chart C、In parenthesis on the lines of equal magnetic variation D、Annual rate of change is not shown
A、deviation minus variation B、variation plus compass course C、combined variation and deviation D、difference between true and magnetic heading
A、A.deviation minus variation B、B.variation plus compass course C、C.combined variation and deviation D、D.difference between true and magnetic heading
A、magnetic equator B、magnetic longitude reference line C、points where there is no variation D、points where there is no annual change in variation