Computer · Surveying
The error in horizontal circle readings due to the line of collimation not being perpendicular to the trunnion axis is eliminated by:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Taking readings on different parts of the horizontal circle
- 2Taking readings on both faces (Face Left and Face Right)✓
- 3Removing the parallax error
- 4Transiting the telescope only
Correct answer
Taking readings on both faces (Face Left and Face Right)
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