Computer · Fluid Machinery
The mechanical efficiency (ηm) of a centrifugal pump is expressed by which of the following relations (where P is the total power input and Pmech loss is mechanical power loss)?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1ηm = (P - Pmech loss) / P✓
- 2ηm = (P + Pmech loss) / P
- 3ηm = (P - Pmech loss) / P2
- 4ηm = Pmech loss / P
Correct answer
ηm = (P - Pmech loss) / P
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