Nivaar worked solution (AI-drafted; not reviewed by a licensed engineer)
National Exams — December 2014 — 04-Geol-A7 Applied Geophysics. Three-hour, open-book exam; any non-communicating calculator permitted. The NOTES state that SIX questions constitute a complete paper, but eight numbered questions are printed on the exam — all eight, and every lettered/numbered sub-part, are solved below. Two figures (the CMP gather of Q6 and the reversed-refraction time-distance plot of Q8) carry real numeric data that is only given graphically on the printed page; both were read from the printed figures, calibrated against each figure's own printed axes, and the reading tolerance is given in a check callout beside each calculation.
Reference texts: Telford, Geldart & Sheriff, Applied Geophysics (2nd ed.) — the primary reference for every method in this paper (gravity, magnetics, seismic refraction and reflection, electrical resistivity, induced polarization, electromagnetics); Kearey, Brooks & Hill, An Introduction to Geophysical Exploration (3rd ed.) — survey design and interpretation context; Blakely, Potential Theory in Gravity and Magnetic Applications — the dipole/sphere anomaly shapes used in Q2–Q3.
