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

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

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Hydraulics and Fluid Mechanics in ME
A floating body is said to be in a state of stable equilibrium

only when its centre of gravity is below its centre of buoyancy
when the metacentre is above the centre of gravity
when its metacentric height is zero
when the metacentre is below the centre of gravity

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