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← TechnologyWhich outcome occurs when a turbine's nacelle yaw gearbox experiences component fatigue?
A)Misalignment with optimal wind direction✓
B)Increased blade pitch control sensitivity
C)Rotor over-speed due to decreased drag
D)Generator output frequency oscillations start
💡 Explanation
Misalignment results because fatigue weakens the yaw gearbox's rotational accuracy about the vertical axis. This activates a closed loop feedback controller, which increases yaw angle error to reduce the performance, rather than maintaining an optimal angle.
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