To operate an aircraft under its own power on the ground, except when involved in takeoff and landing.

• A. Taxi
• B. Turn (local)
• C. Round Trip
• D. Preflight Inspection

Answer: (A)

Moving an aircraft on the ground under its own power between places like the gate, taxiways, and the runway is called taxiing. This is the period when the airplane is powered on the ground but not in the air, i.e., not during takeoff or landing. The other options don’t describe this ground maneuver: a preflight inspection is a preflight activity, and the other terms aren’t standard for the act of moving on the surface under power. So taxiing is the correct term.