Question

Shear stress in a fluid flowing in a round pipe

a.

varies parabolically across the cross-section.

b.

remains constant over the cross-section.

c.

is zero at the centre and varies linearly with the radius.

d.

is zero at the wall and increases linearly to the centre.

Answer: (c).is zero at the centre and varies linearly with the radius.

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Q. Shear stress in a fluid flowing in a round pipe

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