Lakhasly

To create a longitudinal profile, start by setting up the level and taking a backsight to the benchmark. Measure and mark points along the desired line, taking staff readings at each point and recording them as IS/FS. Tabulate this data and reduce the levels.

Next, set up the level at station A and take a reading at a perpendicular distance of 20 meters (A1), then take additional readings at 4-meter intervals between the level and A1. Repeat this procedure on the opposite side of the instrument (A10 to A6).

Relocate the level to station B and repeat the process for stations C through G. Summarize the data and calculations in a table and draw the longitudinal and cross-sectional profiles at appropriate scales.

To create a longitudinal profile, first, set up the instrument and take a backsight (BS) to the benchmark (BM). Stretch the measuring tape along the desired line and mark points at convenient intervals. Take staff readings at each point and record them as IS/FS. Tabulate this data and reduce the levels.

Next, set up the level at station A and take a reading at a perpendicular distance of 20 meters (station A1). Take additional readings at 4-meter intervals between the level and A1. Repeat this process on the other side of the instrument (stations A10 to A6).

Relocate the level to station B and repeat the procedure. Continue this process for stations C through G. Summarize the data and calculations in a table and draw the longitudinal and cross-sectional profiles at appropriate scales.