Engine : General Subjects - 1399/1128
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| After a disassembly of a single stage centrifugal pump, one finds the outer circumference of the impeller badly pitted and worn. Not having a spare impeller on board, it is decided to turn down the impeller to eliminate the wear/pitting. What will be the pump capacity, in GPM, after the reduction of impeller diameter by 0.5 inches? GIVEN: Original pump capacity = 30 GPM Original impeller diameter = 8 in. |
| A) 24.78 GPM |
| B) 26.37 GPM |
| C) 28.12 GPM |
| D) Capacity would not change. |
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| Comments |
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| Jamie - 2021-06-12 10:30:53 Member (13) |
| 30 GPM x ((8 - 0.5) in/8 in) = 28.12 GPM |
| LunarCatUSA - 2021-04-24 16:09:09 Member (4) |
| What’s the equation for pump capacity? |
| liam.fisher87 - 2020-10-10 12:20:14 Member (4) |
| Calculate using impeller's circumference and not the impeller's area. |