DME stands for?

DME stands for?

• A. Distance Measuring Equipment
• B. Distance Measuring Engine
• C. Data Monitoring Equipment
• D. Direct Microwave Emitter

Answer: (A)

Distance Measuring Equipment is a radio navigation aid that provides the distance from the aircraft to a DME ground station, usually shown in nautical miles. It works by the aircraft querying the DME transponder and receiving a reply; the round‑trip time of the signals is converted into distance. This distance is typically used together with a VOR to give both bearing and distance (a VOR/DME). The other options don’t describe a navigation aid that measures distance in this way, so they aren’t correct.

Distance Measuring Equipment is a radio navigation aid that provides the distance from the aircraft to a DME ground station, usually shown in nautical miles. It works by the aircraft querying the DME transponder and receiving a reply; the round‑trip time of the signals is converted into distance. This distance is typically used together with a VOR to give both bearing and distance (a VOR/DME). The other options don’t describe a navigation aid that measures distance in this way, so they aren’t correct.