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INTRODUCTION 1 Definition
Training Provided by Surveying
Plane and Geodetic Surveying
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approximate probable error azimuth B.Ms backsight blunders bubble is centered bubble tube Clamp clinometer compass computed contour corners Courtesy of Keuffel curvature determined difference in elevation dumpy level eliminated engineering errors of adjustment exactly example eyepiece feet long field notes foot footscrews foresight formula graduations ground horizontal angle horizontal cross-hair horizontal distance instrument Keuffel and Esser line of sight magnetic bearing magnetic declination measured ment meridian method minutes moved necessary needle readings objective lens obtained pegs plane plate bubbles plumb bob Polaris position precise procedure Prop pull read as printed read co-function rear tapeman refraction rod reading sag correction screws shown in Fig sketch slope stadia stake station steel tape tangent target telescope bubble tion transit transitman traverse triangulation Trigonometric Trigonometric Functions tripod true length true north two-peg test usually vernier vertical angle vertical axis vertical circle vertical cross-hair