Hydraulics and Fluid Mechanics in ME
When a liquid is flowing through a pipe, the velocity of the liquid is

Maximum at the centre and zero near the walls
Minimum at the centre and maximum near the walls
Maximum at the centre and minimum near the walls
Zero at the centre and maximum near the walls

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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

Length of both the pipes is same
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

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