
| Engine : General Subjects - 1991/1128 |
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| « Previous Question |
| Pitting in the suction areas of a centrifugal pump bronze impeller is usually caused by __________. |
| A) cavitation |
| B) abrasion |
| C) corrosion |
| D) electrolysis |
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| Comments |
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| brandi - 2025-06-16 08:35:05 Registered (2) |
| Cavitation occurs when the pressure in the suction side of the pump drops below the vapor pressure of the liquid, causing vapor bubbles to form. These bubbles collapse violently as they move into higher pressure regions of the pump, causing pitting and erosion on the impeller surfaces — especially near the suction area. This damage is common in bronze impellers due to their relative softness compared to harder materials. <a href="https://brandirosgen.com/evolutionary-inspiration/">counselling services in Calgary</a> |
