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Which instability arises in aerospace hydraulic systems when a servovalve rapidly shifts position?

A)Flow saturation causing actuator delay
B)Pressure overshoot causing structural stress
C)Reverse flow causing pump cavitation
D)Piston lock causing valve failure

💡 Explanation

When a servovalve rapidly shifts, the fluid inertia results in pressure surges due to the hydraulic fluid's incompressibility, leading to a pressure overshoot that can overstress components. Therefore, pressure overshoot and structural stresses result, compared to the alternative mechanisms because rapid actuation is occurring.

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