The magnetic declination in a locality is 2°17' W. Determine the true bearing aof the line whose magnetic bearing is N 38°21' W: A) 315°09' B) 139°22 N 40°38′ W N36°04' W

Q: The magnetic bearing of a line AB is S 28°30' E. Calculate the true bearing if the declination is…

A: Solution; Since the declination is to be west, the magnetic meridian will be to the west of the true…

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

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Q: If the reduced bearing of a line AB is N60°W and length is 100 m, then the latitude and departure…

A: Latitude is the distance in north south axis, whereas departure is the distance in east west axis.

Q: The true azimuth of a line measured from south is 154°30'. If the magnetic declination within the…

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Q: 6. If the azimuth of PQ is 240 degrees what is the back azimuth? 7. In 1902 the magnetic declination…

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Q: Problem 6: a) Boundary RS has a bearing of N 54° 12' 34".W. What is its back bearing? b) What is the…

A: Bearing of boundary RS is = N54o12'34"W To find:- (a) Back bearing of RS (b) Azimuth of RS (c) Back…

Q: The back-bearing of XY is S 25° 25' 36" E. What is the fore-bearing of XY? Provide your answer as a…

A: Objective: To determine the fore-bearing of line XY from the given value of back-bearing.   Given:…

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: from north and south of the following lines whose magnetic bearings are given. a.)        AB, N…

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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.