photographic survey is carried out to a scale of 1: 20000. A camera with a wide angle lens of f = 70 mm was used with 25 cm x 25 cm plate size for a net 65% overlap along the line of flight. What s the error in height given by an error of 0.15 mm in measuring the parallax of the point ?

photographic survey is carried out to a scale of 1: 20000. A camera with a wide angle lens of f = 70 mm was used with 25 cm x 25 cm plate size for a net 65% overlap along the line of flight. What s the error in height given by an error of 0.15 mm in measuring the parallax of the point ?

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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Construction Surveys

A construction survey is a survey done on a construction site to mark construction activities and for laying out positions for construction equipment. It includes evaluating and estimating construction activities before the beginning of the project.

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A photographic survey is carried out to a scale of 1 : 20000. A camera with a wide angle lens of f =
170 mm was used with 25 cm x 25 cm plate size for a net 65% overlap along the line of flight. What
is the error in height given by an error of 0.15 mm in measuring the parallax of the point?

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Q- A photographic survey is carried out to a scale of 1: 20000. A camera with a wide angle lens of f = 170 mm was used with 25 cm × 25 cm plate size for a net 65% overlap along the line of flight. What is the error in height given by an error of 0.15 mm in measuring the parallax of the point ?
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