19. Using this data set explain how you could estimate how often control needs to exist if you want to keep error ellipses and elevation coordinate standard deviations under .1 ft. 20. Job1n.1d and job1n.2d are results from the same .obs processed very differently compared to job1.

19. Using this data set explain how you could estimate how often control needs to exist if you want to keep error ellipses and elevation coordinate standard deviations under .1 ft. 20. Job1n.1d and job1n.2d are results from the same .obs processed very differently compared to job1.

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

Instruments for Surveying

Surveying is the practice that determines the relative three-dimensional positions of many different points on the earth’s surface. There are various instruments used in Surveying like Theodolites, Total station, Tripod stands, Plane table, etc. for measuring horizontal angle, vertical and sloping angle, which are very useful for giving accurate and precise measurement.

Question

19. Using this data set explain how you could estimate how often control needs to exist if
you want to keep
error ellipses and elevation coordinate standard deviations under .1 ft.
20. Job1n.1d and job1n.2d are results from the same .obs processed very differently
compared to job1.

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