1 A level, set up at C in a position 30 m from a staff held at A and 60 m from a staff held at B, gave readings of 1.914 m and 2.237 m respectively, the bubble having been brought to the centre of its run before each reading. The level was then taken to D, 30 m from B and 60 m from A, and staff readings of 1.874 m and 2.141 m respectively were

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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obtained, at A and B. The level stations and
staff stations lay in a straight line.
Determine the collimation error of the level,
the corrected difference in level between A
and B, and the staff readings obtained from D
when the instrument had been placed in
adjustment.
Transcribed Image Text:obtained, at A and B. The level stations and staff stations lay in a straight line. Determine the collimation error of the level, the corrected difference in level between A and B, and the staff readings obtained from D when the instrument had been placed in adjustment.
1 A level, set up at C in a position 30 m from a
staff held at A and 60 m from a staff held at B,
gave readings of 1.914 m and 2.237 m
respectively, the bubble having been brought
to the centre of its run before each reading.
The level was then taken to D, 30 m from B
and 60 m from A, and staff readings of
1.874 m and 2.141 m respectively were
Transcribed Image Text:1 A level, set up at C in a position 30 m from a staff held at A and 60 m from a staff held at B, gave readings of 1.914 m and 2.237 m respectively, the bubble having been brought to the centre of its run before each reading. The level was then taken to D, 30 m from B and 60 m from A, and staff readings of 1.874 m and 2.141 m respectively were
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