Who uses ground signals to convey taxi instructions non-verbally when radio communication is limited?

• A. Controllers
• B. Pilots
• C. Passengers
• D. Security

Answer: (A)

Ground controllers use standardized ground signals to convey taxi instructions non-verbally when radio communication is limited. They guide aircraft on the taxiways with hand signals or signal wands, directing where to go, where to hold, or when to stop. The pilot reads and follows these signals to move safely around the airfield. Passengers and security don’t perform this role, and pilots don’t issue signals—they respond to them.