Which instrument is not used to determine a ship's heading?

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Multiple Choice

Which instrument is not used to determine a ship's heading?

Explanation:
Heading is the direction the bow points, and ships determine it with instruments that measure orientation to north. The magnetic compass shows direction relative to magnetic north, and the gyro compass provides true heading relative to geographic north. Radar assists with navigation by giving relative bearings to objects and can help plot a course, but it does not give the ship’s heading as a primary measurement. The log, on the other hand, measures speed (through water or over ground) and has no bearing information. Therefore, the instrument not used to determine a ship’s heading is the log.

Heading is the direction the bow points, and ships determine it with instruments that measure orientation to north. The magnetic compass shows direction relative to magnetic north, and the gyro compass provides true heading relative to geographic north. Radar assists with navigation by giving relative bearings to objects and can help plot a course, but it does not give the ship’s heading as a primary measurement. The log, on the other hand, measures speed (through water or over ground) and has no bearing information. Therefore, the instrument not used to determine a ship’s heading is the log.

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