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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. [Wrong Answer] |
B. | surface of velocity distribution is a paraboloid of revolution, whose volume equals half the volume of circumscribing cylinder. [Correct Answer] |
C. | velocity profile varies hyperbolically and the shear stress remains constant over the cross-section. [Wrong Answer] |
D. | average flow occurs at a radial distance of 0.5 r from the centre of the pipe (r = pipe radius). [Wrong Answer] |