Computer · Surveying
Which of the following errors CANNOT be eliminated by the process of reciprocal leveling?
- 1Combined effect of earth's curvature and constant refraction
- 2Error due to curvature of the earth alone
- 3Variations in atmospheric refraction and temperature differences during observations✓
- 4Errors due to non-adjustment of line of collimation and constant refraction
Correct answer
Variations in atmospheric refraction and temperature differences during observations
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