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← ScienceWhich outcome reduces hydraulic pump efficiency under high power?
A)Increased cavitation erosion✓
B)Increased volumetric expansion
C)Reduced fluid lubricity
D)Stator winding overheat
💡 Explanation
Increased cavitation creates vapor bubbles imploding in the fluid because high power demand induces turbulence near the pump inlet. The turbulent pressure drop accelerates cavitation erosion, therefore pumps' efficiency declines significantly rather than simply losing volumetric pressure due to expansion.
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