TAXI describes what action?

• A. The movement of an aircraft under its own power on the surface of the airport
• B. The process of boarding passengers
• C. The act of refueling mid-flight
• D. The procedure to call for a lavatory service

Answer: (A)

Taxi is the aircraft’s movement on the airport surface under its own power, typically along taxiways from the gate to the runway before takeoff or from the runway to a gate after landing. This distinguishes it from activities like boarding passengers, refueling mid-flight, or lavatory service, which are different operations. In practice, once engines are running and clearance is given, the airplane taxis to the runway, and after landing it taxis to the gate.