How to solve question 25 on professional knowledge in the morning session of 2014? What is the answer?
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25. For a pipeline used for transporting oil, with an oil viscosity of 80 cP and a density of 920 kg/m3, a pipe diameter of φ159×5, and a transport rate of 50 tons per hour, what is the value of the resistance coefficient for this pipeline? 2014 Afternoon 25(A) 0.018 (B) 0.043 (C) 0.032 (D) 0.025
Mass flow rate → Volumetric flow rate → Flow velocity → Re → Stagnation time → λ=64/Re