Hydraulics and Fluid Mechanics in ME
The error in discharge (dQ/Q) to the error in measurement of head (dH/H) over a rectangular notch is given by

dQ/Q = (3/2) × (dH/H)
dQ/Q = (dH/H)
dQ/Q = (1/2) × (dH/H)
dQ/Q = (3/4) × (dH/H)

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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 pressure
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 buoyancy

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

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

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