Convert the following magnetic bearings to geodetic bearing in deg-min. 1. Bearing: S 56° 10'W, declination: 7° 30' W 2. Bearing: N 48° 30' W, declination: 4° 20' E 3. Bearing: S 68° 10' E, declination: 5° 40' W

Q: 7. 1 A = 51°23' B = 105°39' The four-sided, closed traverse has the following angles and distances:…

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Q: The magnetic declination at a certain place is 8°15 E. What is the magnetic bearing there: (a) of…

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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: Line Ав вс со DE EF FA Azimuth/Bearing Distance (m) 237° 29' 69.46 327° 29' 571° 33' W 118 04 215°…

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Q: a. b. c. 120° Az 315° Az 245° Az

A: a120°Az is in 2nd coordinate:Bearing =180-120=60°so,Bearing =S 60 E

Q: . In an old survey made when the declination was 2010'W, the magnetic bearing of a given line was…

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Q: (a) (b) S-diagram A C (c) M - diagram 21.39 3m 25 kN G B 1.5m 1.5m F 5 kN/m E 18.61 3m C 0.5m 20 kNm…

A: Given Load 25 kN & 5 kN/mMoment 20 kNmSpan 11 mTo find out SFDBMD

Q: Line AP The following observations were taken from stations P and Q. Length (m) Bearings N 60° 30' E…

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Q: 11. Determine the unknown bearings for the traverse courses shown in Figure A. 89°38' 96°11' N83…

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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.