Hydraulics and Fluid Mechanics in ME
The centrifugal pump preferred for a specific speed between 80 to 160 r.p.m. is

High speed with radial flow at outlet
High speed with mixed flow at outlet
Medium speed with radial flow at outlet
Slow speed with radial flow at outlet

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Hydraulics and Fluid Mechanics in ME
A compound pipe is required to be replaced by a new pipe. The two pipes are said to be equivalent, if

Loss of head and velocity of flow in both the pipes is same
Diameter of both the pipes is same
Loss of head and discharge of both the pipes is same
Length of both the pipes is same

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