Nivaar worked solution (AI-drafted; not reviewed by a licensed engineer)
National Exams — December 2016 — 04-Env-A2 Hydrology and Municipal Hydraulics Engineering (3 hours, closed book with an 8½×11 candidate aid-sheet). Instructions state any five (5) of the seven problems constitute a complete paper (100 marks); all seven are solved in full below for completeness.
Reference texts: Linsley, Kohler & Paulhus, Hydrology for Engineers; Chow, Open-Channel Hydraulics; Walski et al., Advanced Water Distribution Modeling and Management; Davis & Cornwell, Introduction to Environmental Engineering.