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Calculate the average velocity of oil flowing through a 4-inch Sch40 standard steel pipe of 100-ft length. The calculated pressure drop along this length was

Calculate the average velocity of oil flowing through a 4-inch Sch40 standard steel pipe of 100-ft length. The calculated pressure drop along this length was 548 lbf/ft2. The oil properties are μ = 5cP, ρ = 60 lb/ft3. At what maximum velocity must the oil flow to maintain a laminar flow? At this condition, what is the friction factor?

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