DME stands for what?

DME stands for what?

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

Answer: (A)

DME stands for Distance Measuring Equipment. It’s a radio navigation aid used by aircraft to determine how far they are from a ground station. The system works by exchanging a coded interrogation from the aircraft to a DME transponder on the ground and timing the round-trip to calculate the distance, usually shown in nautical miles. This distance is the slant range between the airplane and the station, and DME is commonly paired with VOR (as VOR/DME) or with TACAN. The other options don’t reflect the established name or function: they describe something unrelated like a mechanical component, a generic data device, or a different type of emitter.

DME stands for Distance Measuring Equipment. It’s a radio navigation aid used by aircraft to determine how far they are from a ground station. The system works by exchanging a coded interrogation from the aircraft to a DME transponder on the ground and timing the round-trip to calculate the distance, usually shown in nautical miles. This distance is the slant range between the airplane and the station, and DME is commonly paired with VOR (as VOR/DME) or with TACAN.

The other options don’t reflect the established name or function: they describe something unrelated like a mechanical component, a generic data device, or a different type of emitter.