Point Q is equidistant from both A and B, while N is 2.5 m. away from A along the extension of line AB and 79.27 m. from B. Determine the true difference in elevation between A and B.

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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Point Q is equidistant from both A and B, while N is 2.5 m.
away from A along the extension of line AB and 79.27 m. from B . Determine the true difference inelevation between A and B.

In the two peg test of a dumpy level, the following observations were taken.
Rod
Instrument set up
Instrument set
Reading
near Q
0.463 m
up near N
1.563 m
Point A
Point B
0.955 m
2.140 m
Point Q is equidistant from both A and B, while N is 2.5 m. away from A along the extension of line AB and
79.27 m. from B. Determine the true difference in elevation between A and B.
Transcribed Image Text:In the two peg test of a dumpy level, the following observations were taken. Rod Instrument set up Instrument set Reading near Q 0.463 m up near N 1.563 m Point A Point B 0.955 m 2.140 m Point Q is equidistant from both A and B, while N is 2.5 m. away from A along the extension of line AB and 79.27 m. from B. Determine the true difference in elevation between A and B.
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