In determining the stadia interval factor (K) of a transit, a stadia rod was held vertically at several points along measured distances from the instrument and the corresponding stadia hair readings were observed. The distances and the observed readings were recorded as follows: 98.210 96.392 Point 97.756 A B Dist from Transit to Rod (m) 50 65 80 What is the stadia interval factor (K) of the transit? 95 Stadia Hair Readings Upper (m) 1.42 1.65 1.72 1.85 Lower (m) 0.91 0.99 0.90 0.87

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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.