Multiple choice

Which of the following instruments does not work on the principle of gyroscope?

  1. GPS

  2. Turn and Slip indicator

  3. Heading Indicator

  4. All of the above
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A Correct answer
Explanation

GPS uses satellite triangulation and time-of-arrival calculations, not gyroscope principles. The Turn and Slip indicator and Heading Indicator both use gyroscopes - the former uses a rate gyro to detect turn rate, while the latter uses a directional gyro to maintain heading reference. Gyroscopic instruments rely on the principle of rigidity in space and precession.

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