Hydraulics and Fluid Mechanics in ME
The jet ratio is defined as the ratio of the

Diameter of jet to the diameter of Pelton wheel
Velocity of Pelton wheel to the velocity of jet
Diameter of Pelton wheel to the diameter of jet
Velocity of jet to the velocity of Pelton wheel

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

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