9. The following tacheometric observations were made from station A to stations 1 and 2. (Chandra) Instrument at Staff Reading Staff at Zenith Angle Station A Upper Middle Lower 1 96° 55' 1.388 0.899 0.409 A 122° 18' 1.665 1.350 1.032 Calculate the errors in horizontal and vertical distances if the staff was inclined by 1° to the vertical in the following cases: (a) Staff inclined towards the instrument for the line A–1. (b) Staff inclined away from the instrument for the line A-2. The height of the instrument above ground was 1.52 m. Take stadia constants as 100 and 0.0 m.

Q: Following observations were taken for determining the R.L. of station A. Instrument -station Height…

A:

Q: Calculate the RLS of A, B and C, and horizontal distances AB and BC. The tacheometer is fitted with…

A: Given, Tacheometer is fitted with an anallatic lens and multiplying constant (k) is 100 and for…

Q: The upper and lower stadia hair readings on a stadia rod held at station B were observed as 3.50 and…

A: Given:- The upper and lower stadia hair readings on a stadia rod held at station B = 3.50 m and 1.00…

Q: The following consecutive readings were taken with a leveling instrument at intervals of 25 m.…

A: There are two methods of solving this problem. 1.Height of instrument method (HI method) 2.…

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.