The following subtended angles were read on a 2-m long subtense bar using a theodolite: 0°63’20’’, 0°23’05’’, 0°34’30’’. Compute the horizontal distance from the theodolite to each position of the bar

Q: The water surface is at point A in the illustration when the funnel is empty, and the mercury at…

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Q: 2. Distance by Subtense Bar. A subtense bar 2.00 meters long is set up near the middle of a traverse…

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Q: To find the elevation of the top of a chimney, the following observations were made from two…

A: I hope this is helpful

Q: Problem 2. The following observations were taken during a tacheometric survey using the stadia lines…

A: Given- The observation obtained from tacheometric survey using stadia lines of a theodolite.…

Q: If the rod reading taken at 1 is 2.735 m, the elevation of 2 is 225.395 m, the difference in…

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Q: In a vertical photograph taken from an altitude of 2800 m, a chimney of height 100 m, appears at a…

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Q: A subtended angle of 17°21'34.8" was read on a 4 m long subtense bar using a transit. Compute the…

A: Subtense bar method is a method used in surveying to calculate the horizontal distances. In this…

Q: 2. Use Virtual Work Method to calculate the deplection at C for the frame shown in the accompanying…

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Q: 3. In construction survey, a line BC 57.89m is to be laid out using a theodolite. The line has a…

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Q: ) What are "kink-band" failure modes?

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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.