Hydraulics and Fluid Mechanics in ME
In an inward flow reaction turbine

The water enters at the center of the wheel and then flows towards the outer periphery of the wheel
The flow of water is partly radial and partly axial
The water flows parallel to the axis of the wheel
The water enters the wheel at the outer periphery and then flows towards the center of the wheel

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Hydraulics and Fluid Mechanics in ME
Coefficient of velocity is defined as the ratio of

Actual discharge through an orifice to the theoretical discharge
Actual velocity of jet at vena contracta to the theoretical velocity
None of these
Area of jet at vena contracta to the area of orifice

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