Hydraulics and Fluid Mechanics in ME
The type of centrifugal pump preferred for a specific speed of 20 r.p.m. is

High speed pump with radial flow at outlet
Slow speed pump with radial flow at outlet
Medium speed pump with radial flow at outlet
High speed pump with axial flow at outlet

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Hydraulics and Fluid Mechanics in ME
The discharge through a channel of trapezoidal section is maximum when

The sloping side is equal to half the width at the top
Depth of channel is equal to the width at the bottom
The sloping side is equal to the width at the bottom
Width of channel at the top is equal to twice the width at the bottom

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