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Which instability increases when a hydraulic actuator's accumulator pressure is too low?

A)Increased actuator control valve hysteresis
B)Elevated pressure wave induced cavitation
C)Reduced structural damping effectiveness overall
D)Accelerated hydraulic fluid thermal expansion

💡 Explanation

Low accumulator pressure increases the risk of hydraulic pressure oscillation induced cavitation because the accumulator cannot dampen these waves effectively; therefore cavitation becomes more probable, rather than hysteresis changes which are related to valve design.

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