Hydraulics and Fluid Mechanics in ME
Overall efficiency of a centrifugal pump is the ratio of

Manometric head to the energy supplied by the impeller per kN of water
Energy supplied to the pump to the energy available at the impeller
Actual work-done by the pump to the energy supplied to the pump by the prime mover
Energy available at the impeller to the energy supplied to the pump by the prime mover

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Hydraulics and Fluid Mechanics in ME
The meatcentric height is the distance between the

Metacentre and centre of buoyancy
Centre of gravity of the floating body and the metacentre
Original centre of buoyancy and new centre of buoyancy
Centre of gravity of the floating body and the centre of buoyancy

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