Question
Explain the method of reciprocal levelling. When do you need it?
Step 1
This method involves using two leveling instruments set up at each point to ensure accuracy. Show more…
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Trigonometric Leveling In surveying it is often necessary to determine the height of an inaccessible point P, as illustrated in the figure. Points A, B, and C lie on level ground. (Source: P. Kissam, Surveying Practice.) (a) If angle ABP is 50°, angle PAB is 53.3°, and AB is 102 feet, find PB. (b) If angle PBC is 47° and C is directly below P, find PC.
What are the uses of triangulation method?
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