Question

The normal stress is the same in all directions at a point in a fluid, only when the fluid

a.

is at rest & has zero viscosity.

b.

is frictionless.

c.

fluid layer has no motion relative to an adjacent layer of fluid.

d.

is incompressible & frictionless.

Answer: (d).is incompressible & frictionless.

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Q. The normal stress is the same in all directions at a point in a fluid, only when the fluid

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