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Which behavior change emerges when Reynolds number increases within a centrifugal pump?

A)Cavitation erosion rate escalates rapidly
B)Laminar flow becomes fully established
C)Pump efficiency rises above design
D)Hydraulic thrust load is diminished

💡 Explanation

Cavitation erosion risk rises because turbulent flow increases near the impeller. Energized bubbles collapse violently based on Bernoulli's principle, therefore option A, rather than laminar flow's stability, becomes dominant when viscous forces relative to inertial forces decrease.

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