Hydraulics and Fluid Mechanics in ME
A jet of water is striking at the centre of a curved vane moving with a uniform velocity in the direction of jet. For the maximum efficiency, the vane velocity is ________ of the jet velocity

One-half
Two-third
Three-fourth
One-third

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Hydraulics and Fluid Mechanics in ME
Meta-centric height is given as the distance between

The center of gravity of the body and the metacenter
The center of gravity of the body and the center of pressure
The center of gravity of the body and the center of buoyancy
Center of buoyancy and metacenter

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