A surveyor conducts trigonometric leveling to determine the elevation of a target point P based on the elevation of a BM (given as 100.00 ft). The surveyor installs the total station at target point P and-reflector at BM. Total station instrument height is measured to be 3.50 ft and the reflector height is read to be 6.00 ft. The vertical distance read from the total station is 2.748 ft. What is the elevation at P based on the above given conditions?

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Instruments for Surveying

Surveying is the practice that determines the relative three-dimensional positions of many different points on the earth’s surface. There are various instruments used in Surveying like Theodolites, Total station, Tripod stands, Plane table, etc. for measuring horizontal angle, vertical and sloping angle, which are very useful for giving accurate and precise measurement.