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PROBLEM 3: The lines OA and OB, whose magnetic bearings are N39°25'W and N75°50'E are laid out in plane. What is the angle between the lines? ( respectively.

PROBLEM 3: The lines OA and OB, whose magnetic bearings are N39°25'W and N75°50'E are laid out in plane. What is the angle between the lines? ( respectively.

Structural Analysis
Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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PROBLEM 3: The lines OA and OB, whose magnetic bearings are N39°25'W and N75°50'E respectively, are laid out in plane. What is the angle between the lines? ( PROBLEM 4: Assume the magnetic bearing of line AB read in 1878 was N26°15'E. The magnetic declination at that time and place was 7°15'W. In 1984 the declination was 4°30'E. What is the needed magnetic bearing in 1984?" PROBLEM 5: For a given data from a survey, determine the following: a. Latitude and departures (1 b. Linear error of closure c. Error/Closure in latitude ( d. Error/Closure in departure (4 e. Direction of the side of error ( f. Precision of measurement made. (5 LINE AB BC CD DE EF FA LENGTH 233.10 242.05 191.50 234.46 270.65 252.38 AZIMUTH FROM NORTH 122°30' 85°15' 20°00' 333°35' 254°08' 213⁰00¹ LATITUDE N (+) S(-) DEPARTURE E(+) W(-)
Transcribed Image Text:PROBLEM 3: The lines OA and OB, whose magnetic bearings are N39°25'W and N75°50'E respectively, are laid out in plane. What is the angle between the lines? ( PROBLEM 4: Assume the magnetic bearing of line AB read in 1878 was N26°15'E. The magnetic declination at that time and place was 7°15'W. In 1984 the declination was 4°30'E. What is the needed magnetic bearing in 1984?" PROBLEM 5: For a given data from a survey, determine the following: a. Latitude and departures (1 b. Linear error of closure c. Error/Closure in latitude ( d. Error/Closure in departure (4 e. Direction of the side of error ( f. Precision of measurement made. (5 LINE AB BC CD DE EF FA LENGTH 233.10 242.05 191.50 234.46 270.65 252.38 AZIMUTH FROM NORTH 122°30' 85°15' 20°00' 333°35' 254°08' 213⁰00¹ LATITUDE N (+) S(-) DEPARTURE E(+) W(-)
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