Question

The length of the tube necessary for the boundary layer to reach the centre of the tube and for fully developed flow to be established is called the __________ length.

a.

equivalent

b.

transition

c.

Prandtl mixing

d.

none of these

Answer: (b).transition

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Q. The length of the tube necessary for the boundary layer to reach the centre of the tube and for fully developed flow to be established is called the __________ length.

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