What is one indication that an aircraft is experiencing a wake turbulence encounter?

Experiencing unexpected yaw or roll movements is a clear indication that an aircraft is encountering wake turbulence. Wake turbulence is generated by the passage of an aircraft through the air and can disrupt the airflow around a subsequent aircraft. When this occurs, it can cause sudden and unanticipated changes in the aircraft's orientation, resulting in yaw (side-to-side movement) or roll (tilting movement).

Pilots must be particularly vigilant for these uncommanded movements, as they can be a sign of entering the wake of another aircraft, especially during takeoff or landing phases when the aircraft is flying at lower speeds and altitudes, making it more susceptible to such turbulence effects. This alertness is crucial for maintaining control and ensuring safety, especially in busy air traffic environments.

Other choices, such as steady climb rate, vibrations of the control surfaces, and steady airspeed, do not directly indicate the presence of wake turbulence. A steady climb rate and steady airspeed suggest a stable flight condition that is not typically associated with the disruptions caused by wake turbulence. Vibrations of the control surfaces may have different causes and are less specific indicators of wake turbulence compared to the specific uncommanded yaw or roll movements you would observe during such an encounter.