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← ScienceWhich risk increases when the bypass valve on a pressure relief valve fails to fully close?
A)System over-pressurization during normal operation✓
B)Excessive pump cycling due to low pressure
C)Fluid hammer during valve closure
D)Erosion of the valve seat
💡 Explanation
When the bypass valve fails to fully close, constant leakage occurs because the valve is not properly seated, leading to a continuous flow path that prevents the system from reaching its designed pressure limits. Therefore, system over-pressurization results, rather than pump cycling, fluid hammer, or seat erosion which require different failure modes.
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