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← ScienceWhich outcome occurs when a centrifugal pump's intake pipe suffers significant cavitation?
A)Increased impeller erosion from bubble collapse✓
B)Higher pump efficiency from decreased viscosity
C)Reduced motor load due to increased flow
D)Stable flow is achieved at shutoff
💡 Explanation
Cavitation causes impeller damage because vapor bubbles' implosion induces intense local pressures via Rayleigh collapse. The collapse erodes the impeller material, therefore, increased erosion occurs, rather than increased fluid efficiency and smoother flow.
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