A- The magnetic bearing of the link BA is N 46° 20' E and the magnetic declination in that region at time of surveying was 12° 5' W. The internal angles of the polygon corners A, B, C, D and E are 206° 11',107° 16', 96° 12', 64° 14'and 64° 2', respectively, which was named counterclockwise. Make required checks. Find the true bearing of the lines of the polygon.

Q: Find the bearing of the line having: dep= 434m and latitude of 650m

A: departure D=Lsinθ=434 m latitude L=Lcosθ=650m

Q: If bearing of line XY and XZ are 26°10' and 298°15' the value of included angle ZXY is?

A: The bearing of line XY = 26o10'bearing of line XZ = 298o15'To Find :Included angle ZXY ?

Q: The bearing of a line AB in a closed traverse ABCA is 137°30' and its length is 125.8 m. The…

A: Bearing of line AB: 137°30′Length of line AB: 125.8 mX-coordinate of point A: -5 mY-coordinate of…

Q: 2. Convert the following bearings to azimuths: a) N42°37'W b) N71°13'E c) S75°55'E d) S13°43'W e)…

A:

Q: 5: Open Traverse: Find the distance and direction of boundary AD.

A: ###Distance AD and Direction of AD of Open 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.