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CSS Solved Papers
Physics Chemistry

Engineering :: Fluid Mechanics and Hydraulic Machines

  The distance r from the centre of a tube of radius r0 where the average velocity occurs in laminar flow is
[A]. 0.5 r0[B]. 0.707 r0
[C]. 0.8 r0[D]. r0
[E]. None of the above    

Answer: Option B
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