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GATE ME concept:flow-through-pipes PYQs

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Question 31

Open question
ME-1MCQ2 marksNeeds review
Consider steady flow of an incompressible fluid through two long and straight pipes of diameters

and

arranged in series. Both pipes are of equal length and the flow is turbulent in both pipes. The friction factor for turbulent flow through pipes is of the form,

, where

and

are known positive constants and Re is the Reynolds number. Neglecting minor losses, the ratio of the frictional pressure drop in pipe 1 to that in pipe 2,

, is given by
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