1.

In a turbulent flow through a pipe, the shear stress is :

A.  Maximum at centre and decreased linearly towards the wall
B.  Maximum at centre and decreased logarithmically towards the wall
C.  Maximum midway between the centre ? line and the wall                      
D.  Maximum at the wall and decreases linearly to zero at the centre
Answer» C.  Maximum midway between the centre ? line and the wall                      


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