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← ScienceWhich risk increases where pump cavitation erodes impeller blades?
A)Suction pressure declines noticeably
B)Flow rate fluctuates dramatically✓
C)Net Positive Suction Head decreases
D)The Reynolds number locally increases
💡 Explanation
Fluctuating flow increases because vapor bubbles from cavitation collapse suddenly via the **Rayleigh-Plesset equation**, generating powerful localized jets; therefore, flow becomes erratic, rather than predictable declines under different conditions.
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