Hydraulics and Fluid Mechanics in ME
The conditions for the stable equilibrium of a floating body are

the center of buoyancy and the center of gravity must lie on the same vertical line
the meta-center should lie above the center of gravity
a righting couple should be formed
all the above are correct

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Hydraulics and Fluid Mechanics in ME
The total energy of a liquid particle in motion is equal to

Pressure energy + kinetic energy + potential energy
Pressure energy - (kinetic energy + potential energy)
Potential energy - (pressure energy + kinetic energy
Kinetic energy - (pressure energy + potential energy)

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

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
To lift larger load by the application of a comparatively much smaller force
All of these

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