Computer · Surveying
An instrument was set up and a back sight was taken to a permanent 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 point where the fore sight was previously taken?
- 1Fore bearing
- 2Back bearing
- 3Fore sight
- 4Back sight✓
Correct answer
Back sight
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