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Which risk increases within a pump when cavitation initiates?

A)Impeller erosion due to bubble collapse
B)Increased lubrication system effectiveness
C)Enhanced pump efficiency characteristics
D)Decreased pump motor power consumption

💡 Explanation

Cavitation generates vapor bubbles which collapse violently; therefore, excessive energy is released locally and causes material erosion because of the **Raleigh collapse**, rather than improved efficiency or reduced power consumption, which are suppressed by high internal turbulence.

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