Hydraulics and Fluid Mechanics in ME
Reciprocating pumps are no more to be seen in industrial applications (in comparison to centrifugal pumps) because of

Necessity of air vessel
Lower speed of operation
Lower discharge
High initial and maintenance cost

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Hydraulics and Fluid Mechanics in ME
The Euler's equation for the motion of liquids is based upon the assumption that

The fluid is non - viscous, homogeneous and incompressible
The flow is continuous, steady and along the stream line
All of these
The velocity of flow is uniform over the section

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