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

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

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Hydraulics and Fluid Mechanics in ME
A vertical wall is subjected to a pressure due to one kind of liquid, on one of its sides. Which of the following statement is correct?

The pressure on the bottom of the wall is maximum
The pressure on the wall at the liquid level is minimum
The pressure on the bottom of the wall is zero
The pressure on the wall at the liquid level is zero, and on the bottom of the wall is maximum

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Hydraulics and Fluid Mechanics in ME
A compound pipe is required to be replaced by a new pipe. The two pipes are said to be equivalent, if

Loss of head and velocity of flow in both the pipes is same
Loss of head and discharge of both the pipes is same
Length of both the pipes is same
Diameter of both the pipes is same

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