A tower is located on a hilltop at T. Angular readings are taken with a theodolite from two instrumentation stations A and B, which are 50 m apart. Given the following data, determine the R.L. of hilltop at T and the tower height. Height of instrument (R.L. of instrumental centre) = 10 m. Vertical angles from A to the top and bottom of the tower at T is 35° and 28°(upward) respectively. Whole circle bearing of line AT, AB and BTis 25°, 110°, 5° respectively

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Q: Determine the elevation of the points using Collimation method. 3.116 2.225 3.035 1.822 A Ele.…

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Q: Points a, b, and c have mean sea elevation of 660 m, 626 m, and 600 m, respectively. meanwhile,…

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Q: Given the data of an open traverse below, convert it into figure and determine its corresponding…

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Q: Find the deflection angle from the following observation AB=N42°20' E BC=N 30°00'E * O 12° 20'L 12°…

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Q: 9. In order to find the difference in elevation between two points P and Q, a level was set upon the…

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Q: Exercise 2: Calculate deflection at B and slope at A. 500 N/m C. 88 4 m 4 m

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Q: 25K 15ft 15ft 3000in 6000in

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Q: n Calculate the corrected staff reading at point A, if the staff reading is taken from an instrument…

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Methods of Surveying

Surveying is the practice to determine the relative three-dimensional positions of various points on the earth’s surface. This is done by computing the vertical and horizontal distances, angles between the points, collecting the observations, and plotting them on a map of any appropriate scale. Accuracy can be achieved by using the latest instruments like a theodolite, tachometer, etc. Leveling is a subdivision of surveying where the objective is to locate the elevation of objects considering a datum level.