Hydraulics and Fluid Mechanics in ME
A metal with specific gravity of 'a' floating in a fluid of same specific gravity 'a' will

Be fully immersed with top surface at fluid surface
Partly immersed
Float over fluid
Sink to bottom

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

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

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