Answered: Compass Sta. Point Sighted Bearing A F…

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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Question

A six-sided closed traverse was surveyed over the stations ABCDEF. At each station, the back bearing

of the previous course and the forward bearing of the next course were observed, on a compass, with the following results. Compute the forward bearings for all six courses, corrected for local attraction.

Suggestion: Draw a sketch of the traverse and, at each station, indicate the direction of the magnetic meridian and the relative direction of the compass needle as affected by local attraction.

Compass Sta.
Point Sighted
Bearing
A
F
N 10°15' W
A
В
S 72°00' E
В
A
N 73°00' W
C
N 64°30' E
В
S 62°45' W
D
N 3°00' W
C
S 1°30' E
D
E
S 81°15' W
E
N 82°00' E
E
F
N 77°45' W
F
E
S 77°15' E
F
A
S 10°15' E
BCCA

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