Hydraulics and Fluid Mechanics in ME
The angle of contact in case of a liquid depends upon

the material which exists above the free surface of the liquid
both of die above
any one of the above
the nature of the liquid and the solid

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

The liquid particles at different sections have different velocities
The liquid particles at all sections have the same 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
Stanton diagram is a

semi-log plot of friction factor against Reynolds number
log-log plot of relative roughness against Reynolds number
log-log plot of friction factor against Reynolds number
semi-log plot of friction factor against relative roughness

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