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← TechnologyWhich outcome occurs when significant dissolved air enters the pumping circuit of a hydraulic elevator?
A)Cavitation reduces pumping efficiency✓
B)Shear thickening increases fluid viscosity
C)Elastohydrodynamic lubrication improves sealing
D)Oils maintain thermal convective stability
💡 Explanation
Cavitation occurs because the dissolved air lowers the fluid's vapor pressure; therefore, the pump creates vapor bubbles that collapse violently, damaging the impeller and reducing efficiency, rather than increasing viscosity or improving lubrication given low air concentration.
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