FAA Military Competency Practice Exam

A coded transponder equipped with altitude reporting is required for which airspace classes?

1. Class D and Class E airspace

2. Class A, Class B, and Class C airspace

3. Class B and Class C airspace only

4. All classes of airspace

The correct answer is: Class A, Class B, and Class C airspace

A coded transponder equipped with altitude reporting is essential for certain airspace classes to enhance situational awareness and improve safety. Specifically, in Class A airspace, which exists from 18,000 feet MSL up to 60,000 feet MSL, a transponder is mandatory for all aircraft. This requirement helps air traffic control maintain safe separation between multiple aircraft operating at high altitudes. In Class B airspace, which typically surrounds major airports, the requirement for a transponder is also in place. This is due to the high volume of air traffic that operates in these regions, necessitating accurate identification and tracking of aircraft to ensure safe operations. Class C airspace, which encompasses airports with a significant amount of traffic but less than Class B, also mandates the use of a transponder. This is crucial for providing air traffic control with information about the altitude and location of aircraft, allowing for better management of the airspace. While other classes like D and E airspace might have transponder requirements under certain conditions, the fundamental requirement for a coded transponder with altitude reporting definitely applies to Classes A, B, and C. This ensures that air traffic control can effectively manage aircraft in denser traffic areas and at higher altitudes where safety