FE Civil Exam Prep 49, Pipe Flow — Major Losses (Darcy, Hazen-Williams) vs Minor Losses
Aug 5, 2026
This podcast is made by Ran Chen, who holds an EA license, Insurance and Securities licenses (Series 6, 63, 65), and the CFP® designation. He is passionate about opening access to high-quality exam preparation resources and helping learners prepare more effectively for professional certification exams.
In this episode you will learn:
- The fundamental difference between major losses (pipe friction) and minor losses (fittings, valves, bends).
- How to decide whether to use the universal Darcy-Weisbach equation or the water-only Hazen-Williams equation.
- The correct procedure for using the Reynolds number and Moody Diagram to find the Darcy friction factor 'f'.
- Common FE exam traps, including fluid type limitations for Hazen-Williams and unit consistency.
- The methodology for calculating total system head loss by summing the major loss with all individual minor losses.
For more free exam prep tools, practice questions, and AI-powered explanations, visit https://open-exam-prep.com/ or YouTube Channel: https://www.youtube.com/@Open-exam-prep
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