FAA Military Competency Practice Exam

How frequently must an ATC transponder be tested and inspected to comply with regulations?

1. Every 12 calendar months

2. Every 24 calendar months

3. Every 36 calendar months

4. Every 48 calendar months

The correct answer is: Every 24 calendar months

An ATC transponder must be tested and inspected every 24 calendar months to comply with regulations set forth by the Federal Aviation Administration (FAA). This requirement ensures that the equipment is functioning properly and can communicate accurately with air traffic control. Regular testing is critical for maintaining safety in airspace management, especially since transponders provide essential information about an aircraft's location, altitude, and identification. By adhering to this 24-month interval, operators help ensure that transponders operate effectively, which is vital for collision avoidance and overall air traffic safety. Understanding the required frequencies for testing and inspection is important for compliance and operational readiness, ensuring that all aircraft maintain airworthiness standards and safety protocols.