Hydraulics and Fluid Mechanics in ME
Discharge of a centrifugal pump is (where N = Speed of the pump impeller)

Directly proportional to N²
Directly proportional to N
Inversely proportional to N
Inversely proportional to N²

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Hydraulics and Fluid Mechanics in ME
The flow ratio of Francis turbine is defined as the ratio of the

Velocity of runner at inlet to the velocity of flow at inlet
Theoretical velocity of jet to the velocity of flow at inlet
None of these
Velocity of flow at inlet to the theoretical jet velocity

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