The readings on staff which is held vertically 60 m from a tacheometer are 1.460 and 2,055. The line of sight is horizontal. If the focal length of objective lens is 20 cm and the distance from objective lens to the vertical axis is 13 cm, the additive constant is:

The readings on staff which is held vertically 60 m from a tacheometer are 1.460 and 2,055. The line of sight is horizontal. If the focal length of objective lens is 20 cm and the distance from objective lens to the vertical axis is 13 cm, the additive constant is:

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

The readings on staff which is held
vertically 60 m from a tacheometer
are 1.460 and 2,055. The line of sight
is horizontal. If the focal length of
objective lens is 20 cm and the
distance from objective lens to the
vertical axis is 13 cm, the additive
constant is:

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