Pick out the correct statement pertaining to transition/ entrance length in fluid flow ?

Question

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All A., B. and C.

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The length of entrance region of pipe, in which full development of fluid flow takes place

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such that velocity profile does not change downstream, is called the transition length

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Transition length for laminar flow of Newtonian fluids in a pipe of diameter &#8216;d&#8217; is equal to

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0.05. D.NRe

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Transition length for turbulent flow of Newtonian fluids in a smooth pipe of diameter &#8216;d&#8217; is

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equal to 50 D

Question #84118