In case of turbulent flow of fluid through a circular pipe, the __________________?

A. file at the wall are more</strong>

B. Velocity profile becomes flatter and flatter with increasing Reynolds number

C. Mean flow velocity is about 0.5 times the maximum velocity

D. Skin friction drag, shear stresses, random orientation of fluid particles and slope of velocity

E. Point of maximum instability exists at a distance of 2r/3 from the pipe wall (r = pipe radius)

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