Common Core Ground School 2 Practice Exam

The component that provides a constant resistance to tail rotor pedal input to prevent over-control is which?

Pitch Change Link Hydraulic pump Landing light switch Yaw Brake

Correct Answer:

Yaw Brake

Explanation:

Pedal input to the tail rotor must be moderated so the helicopter doesn’t react too abruptly to small commands. A yaw brake provides a constant resistance to tail rotor pedal movement, which dampens the pedal action and limits how quickly yaw can change. This makes heading changes smoother and prevents over-control from minor inputs. The pitch change link is the part that translates pedal movement into tail rotor blade pitch changes, not a brake or damper; the hydraulic pump serves hydraulic systems, not a pedal-damping device; the landing light switch is unrelated to tail rotor control.

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