What does Traffic Collision Avoidance System (TCAS) do?

• A. Increases the rate of climb for the aircraft
• B. Alerts pilots of potential collisions with other aircraft
• C. Controls the descent rate of landing aircraft
• D. Tracks all air traffic in real-time

Answer: (B)

The Traffic Collision Avoidance System (TCAS) is specifically designed to enhance safety in the airspace by alerting pilots of potential collisions with other aircraft. It functions by monitoring the aircraft's surroundings, detecting nearby aircraft, and analyzing their flight paths in order to predict any possibilities of collision. If a risk is identified, TCAS provides visual and auditory warnings to pilots, advising them on the necessary corrective actions to avoid a collision, such as climbing or descending maneuvers.

The other options do not accurately describe TCAS functionalities. While increasing the rate of climb, controlling descent rates, or tracking all air traffic might be relevant in specific contexts related to flight operations, they do not align with the primary role of TCAS, which is focused on avoiding mid-air collisions.