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In case of turbulent flow of fluid through a circular pipe, the | |
A. | mean flow velocity is about 0.5 times the maximum velocity. [Wrong Answer] |
B. | velocity profile becomes flatter and flatter with increasing Reynolds number. [Wrong Answer] |
C. | point of maximum instability exists at a distance of 2r/3 from the pipe wall (r = pipe radius). [Wrong Answer] |
D. | skin friction drag, shear stresses, random orientation of fluid particles and slope of velocity profile at the wall are more. [Correct Answer] |