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← TechnologyWhich outcome occurs when a hydraulic actuator's check valve fails closed during retraction?
A)Thermal runaway in hydraulic fluid
B)Cavitation in the return line
C)Pressure intensification within actuator✓
D)Stalling of the extension stroke
💡 Explanation
When the check valve fails closed, preventing fluid outflow during retraction, pressure intensification occurs because the piston's movement compresses fluid in a sealed chamber exceeding system pressure limits. Therefore pressure intensification results, rather than runaway, cavitation, or stalling which demand alternative mechanisms.
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