Hydraulics and Fluid Mechanics in ME
Surface tension

Is a function of the curvature of the interface
Decreases with fall in temperature
Is also known as capillarity
Acts in the plane of the interface normal to any line in the surface

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

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

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