Computer · Surveying
A levelling instrument was set up and a back sight was taken to a benchmark object A, followed by a staff reading at point 1. Then a fore sight was taken. Since the next point was not visible, the instrument was shifted to point 2. What reading should be taken first at the change point after setting up at point 2?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Back sight✓
- 2Fore sight
- 3Back bearing
- 4Fore bearing
Correct answer
Back sight
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