Hydraulics and Fluid Mechanics in ME
Surface tension

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

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Hydraulics and Fluid Mechanics in ME
Coefficient of velocity is defined as the ratio of

None of these
Actual discharge through an orifice to the theoretical discharge
Area of jet at vena contracta to the area of orifice
Actual velocity of jet at vena contracta to the theoretical velocity

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