Multiple choice

Which of the following instruments is especially designed for avoiding mid air collisions?

  1. AWR

  2. TCAS

  3. GPS

  4. HSI
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

TCAS (Traffic Alert and Collision Avoidance System) is specifically designed to prevent mid-air collisions by interrogating transponders of nearby aircraft and providing vertical guidance to avoid conflicts. AWR is airborne weather radar, GPS is for navigation, and HSI is a cockpit display combining navigation information. TCAS is the only collision avoidance system listed.

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