FE Civil Exam Prep 52, Hydrologic Cycle and the Rational Method Q = CiA

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 direct application of the Rational Method formula, Q = CiA, for peak runoff calculations. - The critical importance of using the correct, non-intuitive units: cubic feet per second (cfs) for Q, inches/hour for rainfall intensity (i), and acres for area (A). - How to calculate a weighted-average runoff coefficient (C) for watersheds with multiple surface types, a common exam scenario. - The definition and function of the Time of Concentration (tc) and how it is used to determine rainfall intensity from IDF curves. - How to spot common exam traps like unit conversions for the area and distinguishing between rainfall intensity and total rainfall depth. 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