An interior angle x and its explement y were turned to close the horizon. Each angle was observed once direct and once reversed, using the repetition method. Starting with an initial backsight setting of 0°00′00″ for each angle, the readings after the first and second turnings of angle x were 50°38′48″ and 50°38′52″ and the readings after the first and second turnings of angle y were 309°21′06″ and 309°21′04″.Calculate each angle and the horizon misclosure

Q: The interior angle x (ABC) and its explement angle y (CBA) were turned to close the horizon. Each…

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

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Q: The elevation of point A is at 1200' above sea level. What is the elevation of point B if the flying…

A: Scale (s) = 1200/12000                 = 1/10

Q: An instrument was set up over station 1, and sights between points A and C were taken. The…

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Q: A total station has a DIN 18723 specified accuracy of ±3″. What is the estimated precision of an…

A: Solution:  Given Data: specified accuracy=±3

Q: The following are three angles A, B and C observed at a station O. closing the horizon, along with…

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Q: e offset observation

A: Introduction- In Worldwide Route Satellite Framework (GNSS) people group, pseudorange observables,…

Control Survey and Geodetic reductions

Control surveys or survey controls are used to establish reference points as a basis for various construction activities. Vertical and horizontal control points are to be established in a control survey to increase accuracy. After establishing the control points, all other types of surveys such as topographic, right-of-way, aerial mapping, construction layout, boundary surveys, and utility mapping can be worked upon so that control networks can be formed. The place from which the observations are made is called a survey station.