FAA Ground School Practice Test

What minimum radio equipment is required for operation within Class C airspace?

1. Single channel radio only

2. Two-way radio, 4096-code transponder, and an encoding altimeter

3. VHF radio only

4. Standard cockpit equipment

The correct answer is: Two-way radio, 4096-code transponder, and an encoding altimeter

For operation within Class C airspace, the minimum radio equipment required includes a two-way radio, a 4096-code transponder, and an encoding altimeter. This regulatory requirement is in place to ensure adequate communication and radar identification of aircraft operating in this controlled airspace. Class C airspace is designed to accommodate a higher density of air traffic, and the use of a two-way radio allows pilots to communicate with air traffic control, receiving necessary instructions and information regarding traffic. The 4096-code transponder is vital for radar tracking, as it allows controllers to identify and monitor the aircraft's location with precision. Additionally, an encoding altimeter is essential for providing air traffic control with altitude information, which is crucial for maintaining safe separation between aircraft. While some other options mention radio equipment, they do not encompass all the elements required for safe operation in Class C airspace. For instance, a single-channel radio or VHF radio alone would not be sufficient as they do not ensure both effective communication with air traffic control and the necessary radar capabilities. Standard cockpit equipment may include useful tools, but it does not specifically denote the required compliance for Class C airspace operations.