THEODOLITE SURVEYING LESSON 1

                             THEODOLITE SURVEYING  LESSON 1











PARTS OF THEODOLITE



  1. Tribrach
  2. Trivet
  3. Foot Screw
  4. Outer Hollow Spindle(Outer Axis)
  5. Solid Conical Spindle (Inner Axis)
  6. Lower Plate Clamp
  7. Upper Plate Clamp
  8. Lower Plate
  9. Upper Plate
  10. Vernier (Graduated arc)
  11. Vernier  (Graduated arc) 
  12. Plate Bubble
  13. Horizontal axis or Trunnion
  14. Vernior Arm
  15. Arm of Vertical Circle Clamp
  16. Standard (A-Standard)
  17. Vertical Circle
  18. Telescope
  19. Axis of Tele scope
  20. Vertical Circle Clamping Screw
  21. Altitude Bubble
  22. Vertical Axis
  23. Tripod Top
  24. Clamping Nut for Shifting Head Centering
  25. Plumb  Bob

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