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← TechnologyWhich outcome occurs when pilot valve contamination affects pressure?
A)Unstable actuator motion (chatter)✓
B)Increased system hydraulic horsepower
C)Decreased fluid bulk modulus
D)Improved servo-valve linearity
💡 Explanation
Pilot valve contamination degrades the signal fidelity because spool valve overlap stiction causes unstable control. The *dither* effect is compromised, therefore the actuator chatters, rather than achieving smooth, precise positioning in response to pressure demands.
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