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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 crosssection |
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 crosssection | |