Hydraulics and Fluid Mechanics in ME
Capillary action is due to the

Adhesion of the liquid molecules and the molecules on the surface of a solid
Cohesion of the liquid
Surface tension
All of the listed here

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Hydraulics and Fluid Mechanics in ME
The kinematic viscosity is the

Product of absolute viscosity and density of the liquid
Ratio of density of the liquid to the absolute viscosity
Product of absolute viscosity and mass of the liquid
Ratio of absolute viscosity to the density of the liquid

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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 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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