In case of laminar flow of fluid through a circular pipe, the

1.	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 volume of circumscribing cylinder.
C.	velocity profile varies hyperbolically and the shear stress remains constant over the cross-section.
D.	average flow occurs at a radial distance of 0.5 r from the centre of the pipe (r = pipe radius).
Answer» C. velocity profile varies hyperbolically and the shear stress remains constant over the cross-section.

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In case of laminar flow of fluid through a circular pipe, the

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