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Which outcome occurs when a hydraulic directional control valve experiences spool stiction at low temperatures?

A)Reduced actuator speed and positioning accuracy
B)Increased system pressure due to fluid expansion
C)Decreased pump efficiency and overheating
D)Excessive noise from valve body resonance

💡 Explanation

When valve spool stiction occurs, the spool's movement is hindered due to increased friction from cold, viscous hydraulic fluid, preventing precise control of the hydraulic fluid flow, leading to reduction in actuator control. Therefore, actuator speed and accuracy are reduced, rather than pressure increase, overheating or resonance, which require different mechanisms.

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