The horizontal axis of a transit was inclined by 8' with the horizontal due to non-adjustment. The first sight had a vertical angle of 40° and the next had an angle of -30°. Determine the error in the measured horizontal angle. 2'6" 11'20" 6'43" 2'55"

The horizontal axis of a transit was inclined by 8' with the horizontal due to non-adjustment. The first sight had a vertical angle of 40° and the next had an angle of -30°. Determine the error in the measured horizontal angle. 2'6" 11'20" 6'43" 2'55"

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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Concept explainers

Errors in surveying

An error in surveying is defined as the difference between two or more values of an identical quantity. However, the estimates are never accurate and there will always be a degree of variability regardless of the research tool or method used. These differences are known as errors that need to be reduced or eliminated to maintain certain levels of accuracy. Even if you carefully follow the prescribed test procedures, the considerations may contain errors.

Question

The horizontal axis of a transit was inclined by 8' with the horizontal due to non-adjustment. The first sight had a vertical angle of 40° and the
next had an angle of -30°. Determine the error in the measured horizontal angle.
O 2'6"
O 11'20"
6'43"
2'55"

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