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This question belongs to Mechanical Engineering Hydraulics And Fluid Mechanics In ME

Hydraulics and Fluid Mechanics in ME

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The loss of head due to viscosity for laminar flow in pipes is (where d = Diameter of pipe, $$l$$ = Length of pipe, v = Velocity of the liquid in the pipe, $$\mu $$ = Viscosity of the liquid and w = Specific weight of the flowing liquid)

A) $$\frac{{4\mu {\text{v}}l}}{{{\text{w}}{{\text{d}}^2}}}$$ B) $$\frac{{8\mu {\text{v}}l}}{{{\text{w}}{{\text{d}}^2}}}$$ C) $$\frac{{16\mu {\text{v}}l}}{{{\text{w}}{{\text{d}}^2}}}$$ D) $$\frac{{32\mu {\text{v}}l}}{{{\text{w}}{{\text{d}}^2}}}$$

Answer & Solution

Correct Answer: Option D

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