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In case of laminar flow of fluid through a circular pipe, the__________________?
A. Shear stress over the cross-section is proportional to the distance from the surface of the pipe
B. Surface of velocity distribution is a paraboloid of revolution, whose volume equals half the
C. Velocity profile varies hyperbolically and the shear stress remains constant over the crosssection
D. Average flow occurs at a radial distance of 0.5 r from the centre of the pipe (r = pipe radius)
Correct Option: B. Surface of velocity distribution is a paraboloid of revolution, whose volume equals half thevolume of circumscribing cylinder
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