Question: Engine oil at (20^{circ} mathrm{C}) flows in a 15 -cm-diameter pipe at a rate of (800 mathrm{~L} / mathrm{min}). The friction factor for this flow

Engine oil at $20^{\circ} \mathrm{C}$ flows in a 15 -cm-diameter pipe at a rate of $800 \mathrm{~L} / \mathrm{min}$. The friction factor for this flow is

(a) 0.746

(b) 0.533

(c) 0.115

(d) 0.0826

(e) 0.0553

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