For laminar flow through a circular tube, the average velocity at a se

1.	For laminar flow through a circular tube, the average velocity at a section is
A.	the same as that at the centre of tube
B.	two-thirds the velocity at the centre of the tube
C.	half the velocity at the centre of the tube
D.	dependent on the pressure at the section
Answer» D. dependent on the pressure at the section

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For laminar flow through a circular tube, the average velocity at a section is

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