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Which risk increases when a hydraulic actuator's cylinder walls thin?

A)Bypass flow increases through internal leakage
B)Erosion from cavitation intensifies rapidly
C)Servovalve spool locks due to thermal expansion
D)Reduced system damping alters frequency response

💡 Explanation

Increased bypass flow occurs because as cylinder walls thin, they distort more easily under pressure. This distortion increases the clearance, which then allows greater flow through the internal leakage paths, therefore reducing actuator output, rather than increasing stress on other components.

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