The compass rose on a nautical chart indicates both variation and ____ . A. deviation B. annual rate of variation change C. precession D. compass error

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On a nautical chart, the inner ring of a compass rose indicates ___ .A. true directions B. compass errorC. deviation D. magnetic directions

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Magnetic tools have an unwanted effects on the compass system

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The captain and his crews depended on the( )of navigation- the compass for orientation.

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Top and bottom inner graduated borderlines of the chart are ___ .A. scales of latitude B. scales of longitudesC. compass rose D. source data

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Routine inspection of the gyro compass does NOT include ____ .A. shifting the mode selector switch on the switch panel of the power source unit to OFF when it is not in useB. checking the repeaters with the master compassC. checking the compass by azimuth observation when possibleD. making sure that the power supply voltage is constantly maintained

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