situation 3] Points A, B, and C have mean sea elevation of 660 m, 626 m, and 600 m, respectively. Meanwhile, point B is 10 km from point A and 12 km from point C. Considering earth's curvature and refraction, determine the following: i. True difference in elevation between points A and C. Hint: Assume an instrument is setup at point B. [ True difference in elevation between points A and B. . Minimum height of tower to be constructed at point C so that point A will be visible enough from the top of the tower. ii. iii

Q: Why double meridian distance method is useful?

A: Solution: The use of double meridian distance method is to determine the area of closed traverse .…

Q: Explain the difference between plane surveying and geodetic surveying

A: Plane survey- In this type of survey, the mean surface of earth is assumed to flat and not the…

Q: Explain the concept of horizontal and vertical control in surveying and how coordinate geometry is…

A: Surveying is precisely measuring and mapping land, often for construction or mapping purposes.…

Q: 2. Calculate the cut area of the drawing below both with the known shapes formula and with the…

A: This question is from survey engineering. Here we are given with a cross section of structure . This…

Q: Describe about the Spencer Charts method.

A: Spencer Charts Method is related to the method for finding Factor of safety for soil stability. It…

Q: 1. Explain methods of surveying?

A: Surveying is the mapping and measurement of the Earth's surface whereby this information is utilized…

Q: The following statements about vertical curves is TRUE, except? O A. The value of the algebraic…

A: - A. Sag curves, where change in grade is positive for example valleys. On other hand, crest curves…

Q: What are inaccessible points?

A: Points which cannot be viewed via ranging rods or other instruments directly from a point of…

Q: What three surveying elements are needed in machine control?

A: The three surveying elements are needed in machine control are a} DTM Digital Terrain Models (DTM)…

Q: write about close levelling surveying: 1- Introduction and object. 2-procedures  3-discussion .

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A: In surveying measurements, numerous types of errors can distort how the data is accurate and…

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A: Option D is correct ( Traverse )

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.