29 pages matching LOGARITHMS OF TRIGONOMETRIC in this book
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Field InstructionsSurveying Instruments
Spring balance Tap Clamp Plumb bob Stakes and tacks
27 other sections not shown
accuracy adjustment alidade angle measured backsight bench mark bubble clinometer column COMMON LOGARITHMS computed contours coordinates correction cross hairs cross section curve deflection angle determined difference in elevation direction dumpy level elevation of points equal equation error of closure EXSEC foresight given ground hand level head tapeman horizontal angle horizontal axis horizontal distance hour angle instance instrument latitudes and departures length line of sight LOGARITHMS OF TRIGONOMETRIC longitude magnetic bearing maximum random error measured angles measured distance ment meridian method miles number of significant observation obtained photographs plane table planimetric plotted plumb bob Polaris pole position probable error recorded rod readings scale screws set-up shown in Fig shows significant figures slide rule slope spirit level stadia stake star stations surface surveys tangent theodolite tion transit traverse triangle TRIGONOMETRIC FUNCTIONS various velocity vernier vertical angle vertical axis vertical circle zero