# For laminar flow in a pipe of circular cross-section, the Darcy’s friction factor f is _____ ? with Answer - Civil Engineering Mcqs | TestPrep

> Solved MCQ: For laminar flow in a pipe of circular cross-section, the Darcy’s friction factor f is _____ ? Correct Answer: C. inversely proportional to Reynolds number and indpendent of pipe wall roughness. Verified answer explanation for FPSC, PPSC, MDCAT, NTS, and CSS competitive exam preparation.

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# For laminar flow in a pipe of circular cross-section, the Darcy’s friction factor f is _____ ?

Direct Answer & Quick Reference

The correct option is **C. inversely proportional to Reynolds number and indpendent of pipe wall roughness**.

A. directly proportional to Reynolds number and independent of pipe wall roughness

B. directly proportional to pipe wall roughness and independent of Reynolds number

C. inversely proportional to Reynolds number and indpendent of pipe wall roughness **(Correct Answer)**

D. inversely proportional to Reynolds number and directly proportional to pipe wall roughness

✨ Explain with AI

Verified Key: C. inversely proportional to Reynolds number and indpendent of pipe wall roughness
Solved by 3,508+ students

Verified against official examination board answer keys and standard curriculum textbooks.

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