Nivaar worked solution (AI-drafted; not reviewed by a licensed engineer)
National Exams — December 2015 — 04-Geol-A2 Hydrogeology. Three-hour, open-book exam; any non-communicating calculator permitted. Five questions constitute a complete paper and all five are of equal value; most call for an essay-format answer with clarity and organization counted. Unless stated otherwise, water density is taken as 1000 kg/m³, water viscosity as 0.001 kg/m-sec, and g as 9.81 m/s².
Reference texts: Freeze & Cherry, Groundwater (Prentice-Hall, 1979) — Darcy's law, soil phase relations, the Theis and Thiem well equations, leaky-aquifer (Hantush-Jacob) theory, image-well boundary methods, and density-dependent flow; Todd & Mays, Groundwater Hydrology — unconfined-well hydraulics and Dupuit-Forchheimer flow; EGBC Geoscience Professional Practice Guidelines for assumption-disclosure conventions on open-book calculations.
