Hydraulics and Fluid Mechanics in ME
Buoyant force is

The force necessary to maintain equilibrium of a submerged body
The resultant force acting on a floating body
Equal to the volume of liquid displaced
The resultant force on a body due to the fluid surrounding it

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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
All of these
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

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