A chain was used to check the distance between two control points on a large building project. The distance  was measured and recorded as 600.172 m. After the work was finished, it was decided to check that chain at  the location baseline. Upon checking, it was found that the chain was actually 29.992 m rather than 30.000.  What is the actual length between the two control points?

Q: Describe methods for linear measurement such as pacing, odometers, tacheometry, taping, and…

A: Answer Pacing - Pacing is the method of measuring distance with the help of pace length .This type…

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Q: A baseline was measured with the tape being suspended in catenary under a pull of 100N and a mean…

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Q: Aerial photography is to be taken of a tract of land that is X-mi square. Flying height will be H ft…

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Q: A line 100m long was paced by a surveyor for four times with the following data, 142, 145, 145.5,…

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Q: The distance between point A and B was measured 15 times. The mean of the 15 measurements is…

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Q: Based on the data gathered from pacing, the distance from point A to B is 89.56m. It was later…

A:

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.