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

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

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Hydraulics and Fluid Mechanics in ME
In a forced vortex motion, the velocity of flow is

inversely proportional to its radial distance from the axis of rotation
directly proportional to the square of its radial distance from the axis of rotation
directly proportional to its radial distance from axis of rotation
inversely proportional to the square of its radial distance from the axis of rotation

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