Which adjustment might indicate misalignment of control surfaces?

The indicated choice relates to the feeling and response of the control inputs during flight. Unbalanced control feedback can suggest that control surfaces are not aligned properly. When the control surfaces, such as ailerons or elevators, are misaligned, it can create uneven forces on the aircraft, leading to a sensation of unbalanced or erratic input. This discrepancy can manifest in the pilot's experience as the aircraft doesn't respond normally to control inputs.

Alignment issues typically cause one side of the aircraft to respond differently than the other, contributing to a feeling of being off-balance when attempting to make corrections with the controls. Pilots rely on a harmonious feedback mechanism from the yoke or stick, and misalignment disrupts this balance, causing an unusual force requirement to maintain straight and level flight.

In contrast, other options may indicate different issues. For example, excessive lateral trim usually suggests a need for aerodynamic corrections but may not directly point to surface misalignment. Vibration at higher speeds may indicate structural or aerodynamic problems rather than control surface alignment. Excessive control deflection might happen for various reasons, including pilot inputs or mechanical failure, but does not inherently imply that misalignment is the cause of these inputs.