Introduction to Surveying |
Contents
differential or spirit leveling 5 5 Trigonometric leveling | 5 |
the engineers transit 6 36 Horizontal angles with the repeating theodolite | 6 |
Other survey operations 362 | 9 |
Copyright | |
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Common terms and phrases
accuracy adjustment alidade angular azimuth bench marks calculated catch point center line circle reading clamp computed contour contour lines control points correction cross hair cross sections curve decimetre deflection angle described in Art determined difference in elevation dumpy level electronic engineer's transit equation equipment example field Figure geodetic graduated grid head tapeman horizontal angles horizontal axis horizontal circle horizontal distance instrument laser least count level bubble level tube leveling screws line of sight magnetic meridian method metres notes observed offset operator photogrammetric photographs plane table plotted plumb position procedure projection random recorded relative precision rod reading rotated scale shown in Fig slope distance spirit level stadia interval standard deviation surface surveyor surveys systematic errors tacheometer tangent screw tape length target telescope terrain theodolite triangle tripod usually vernier vertical angle vertical axis vertical circle zenith angle zero