Hydraulics and Fluid Mechanics in ME
The flow in a pipe or channel is said to be non-uniform when

The liquid particles at all sections have the same velocities
The liquid particles at different sections have different velocities
Each liquid particle has a definite path
The quantity of liquid flowing per second is constant

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Hydraulics and Fluid Mechanics in ME
A right circular cylinder open at the top is filled with liquid and rotated about its vertical axis at such a speed that half the liquid spills out, then the pressure intensity at the center of bottom is

cannot be predicted from the given data
one-half its value when cylinder was full
zero
one-fourth its value when cylinder was full

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