Computer · Surveying
The instrumental error due to the non-verticality of the vertical axis of a theodolite:
- 1cannot be eliminated by any face observational method✓
- 2is eliminated by the method of reiteration only
- 3is eliminated by the methods of repetition and reiteration
- 4is eliminated by the method of repetition only
Correct answer
cannot be eliminated by any face observational method
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