Which are two common ground signals used to guide aircraft during operations?

• A. Stop/hold signal and move/align signal
• B. Move/align signal
• C. Stop/hold signal
• D. None of the above

Answer: (C)

Ground hand signals rely on clear, standardized cues so pilots can safely maneuver on the ground. The two most common signals used to guide aircraft are the stop/hold signal, which tells the pilot to stop and wait, and the move/align signal, which tells the pilot to begin moving and to align with the intended taxi path or lineup. These two together cover the essential actions: halting movement to prevent collisions, then guiding the aircraft into position for taxi or takeoff. An option that lists only one of these signals doesn’t capture the typical pair used in ground guidance, so the best choice is the one that includes both signals.