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Which consequence results when a positive feedback loop occurs within a proportional hydraulic reducing valve?

A)System pressure oscillates unpredictably
B)Actuator speed becomes path-dependent
C)Fluid temperature remains stable
D)Valve spool reaches steady-state position

💡 Explanation

Unstable oscillation occurs because the proportional valve's pressure feedback is amplified by the mechanical linkage, creating a sustained oscillation. Therefore, system pressure oscillates unpredictably, rather than settling to a defined pressure as designed if neutral feedback occurred.

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