Hydraulics and Fluid Mechanics in ME
In an internal mouthpiece, the absolute pressure head at vena contracta is __________ the atmospheric pressure head by an amount equal to height of the liquid above the vena contracta.

None of these
Less than
More than
Equal to

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

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