Hydraulics and Fluid Mechanics in ME
The discharge through an external mouthpiece is given by (where a = Cross-sectional area of the mouthpiece, and H = Height of liquid above the mouthpiece)

1.855 aH.√(2g)
0.855 a.√(2gH)
1.585 a.√(2gH)
5.85 aH.√(2g)

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Hydraulics and Fluid Mechanics in ME
Meta-centric height is given as the distance between

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

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Hydraulics and Fluid Mechanics in ME
A hydraulic press is a device used

To lift larger load by the application of a comparatively much smaller force
All of these
To increase the intensity of pressure of water by means of energy available from a large quantity of water at a low pressure
To store pressure energy which may be supplied to a machine later on

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