Problem 1: The magnetic azimuth reckoned from the north of aline is 205°40'. If the magnetic declination is 3°15' east, the true bearing of the line is a. S28055'W b. N25°30'W c N23°15'E d. S25°40'E e S28°55'E

Q: 1. Convert the following Azimuths to Bearings: a. 10° 20' b. 108° 46' c. 218° 07' d. 334° 35' e.…

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Q: The magnetic declination in a locality is 2°17' W. Determine the true bearing aof the line whose…

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Q: A. Compute the azimuths (from the north) given the bearing of course AB and the angles to the right…

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Q: In an old survey performed in 1965, a line AB had a magnetic bearing of S75deg10’W when the magnetic…

A: Given Data:Magnetic Bearing = S75°10'WMagnetic declination = 4°30'Change in Magnetic declination =…

Q: Survey- The observed magnetic bearing of a line OE was found to be 185°. It was later discovered…

A: Observed MB=185o Local attraction=+1.5o Magnetic declination d=3.5o   It is needed to find the true…

Q: Compute the azimuth from north of line CD. Azimuth AB = 103°26'32"; angles to the right ABC =…

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Q: A line from A to B has a change of easting = +250 ft. and a change of northing = +433.01 ft. What is…

A: Given, Easting of line AB, E = 250 ft. Nothing of line AB, N = 433.01 ft.

Q: The azimuth of line PQ is 293* 30'. The smaller angle between PQ and PR measured clockwise is 75*…

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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.