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18-Env-A2 Hydrology and Municipal Hydraulics Engineering: May 2016

Nivaar worked solution (AI-drafted; not reviewed by a licensed engineer)

  1. Question 1 Conceptual Runoff Models, PVC Pipe Flow and Cross-Connections
  2. Question 2 The Hydrologic Cycle, Stormwater Culverts and the Rational Formula
  3. Question 3 Snow Melt in Detention Design, Wastewater Collection Components, and the IDF Curve
  4. Question 4 Watershed Abstractions, Hydrograph Shape and a Pump Impeller Diameter Change
  5. Question 5 Hardy-Cross Pipe Network, Sanitary Sewer Types and the Manning Formula
  6. Question 6 Runoff Control Systems, Stormwater Ponds and Flood-Frequency Confidence Bands
  7. Question 7 Trapezoidal Channel Uniform Flow, Specific Energy Over a Bump, and the Shields Criterion

Start with Question 1 →

National Exams — May 2016 — 04-Env-A2 / Hydrology and Municipal Hydraulics Engineering. 3 hours duration; closed book with a candidate-prepared 8½×11 in double-sided aid sheet; Casio or Sharp approved calculator only. Any five questions constitute a complete paper (first five answers marked, 20 marks each, 100 marks total); all seven are solved below for completeness.

Reference texts. Davis & Cornwell, Introduction to Environmental Engineering (6th ed.) — hydrology and water-distribution chapters; Metcalf & Eddy, Wastewater Engineering: Treatment and Resource Recovery (5th ed.) — sanitary sewer collection systems; MWH’s Water Treatment: Principles and Design (3rd ed.) — pipe-network analysis and pump selection; Chow, Open-Channel Hydraulics — Manning's n tables, specific-energy and sediment-transport theory; Linsley, Hydrology for Engineers — hydrologic cycle, hydrograph analysis and IDF curves; Walski, Advanced Water Distribution Modeling and Management — Hardy-Cross network solutions and pump affinity laws.