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Here are the steps to solve this problem using the Height of Instrument method: 1. Enter the staff readings in a level book with appropriate columns for BS, IS, FS, HI, RL 2. The first reading of 1.034m is the BS at the BM whose RL is given as 86.452m 3. HI for first setting = RL of BM + BS = 86.452 + 1.034 = 87.486 4. Subsequent RLs are calculated by subtracting readings from previous HI RL of point 2 = 87.486 - 0.672 = 86.814 RL of point 3 = 86.814 - 0.488 = 86.326 5

Author

SaHil ShaRma

Language

EN