Hydraulics and Fluid Mechanics in ME
Newton’s law of viscosity relates

intensity of pressure and rate of angular deformation
viscosity and rate of angular deformation
shear stress and rate of angular deformation
shear stress, viscosity and temperature

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Hydraulics and Fluid Mechanics in ME
Coefficient of contraction is the ratio of

Loss of head in the orifice to the head of water available at the exit of the orifice
Loss of head in the orifice to the head of water available at the exit of the orifice
Actual velocity of jet at vena contracta to the theoretical velocity
Area of jet at vena-contracta to the area of orifice

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