Multiple choice general knowledge science & technology

Which among the following is not a modern day navigation aid generally used in Aeroplanes?

  1. RADAR

  2. VOR

  3. SONAR

  4. GPS
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

RADAR, VOR (VHF Omnidirectional Range), and GPS are all commonly used navigation aids in modern aircraft. SONAR (Sound Navigation and Ranging) is used underwater for submarines and ships, not for aircraft navigation. Therefore, SONAR (Option C) is the correct answer as it is NOT an aircraft navigation aid.

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