2. Convert the bearings of the lines given in the table below (OA, OB, OC, and OD) to azimuths from north. Please note that all four lines have the common start points of O. Also, compute the angle (smaller than 180°) between successive bearings. Show the calculations and draw a neat figure. Line OA OB OC OD Bearing N27°50'05"E $38°12'44"E S23°16'22"W N73°14'30"W Azimuth ? ? ? ? Angle AOB=? BOC=? COD=? DOA=?

Q: 13. In the set of angles stated below, determine the final BEARING of line I-J. The letters are…

A: The final bearing of I-J line is calculated from step by step drawing of all angles and line with…

Q: 10. In the set of angles stated below, determine the final BEARING of line I-J. The letters are…

A: To Determine Bearing of Line IJ

Q: Convert and perform the following and show the answer in bearings: S87°19’33’’W + 19°12’59’’

A:

Q: Draw the 1ft contour lines across the 2-lane road with 12ft lanes and 5ft wide shoulders. The…

A: Longitudenal slope= 5%cross slope=3% accross pavement                      =3% accross…

Q: l and all lines are 300.00 fe East: @B Deflection an

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.