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9. In order to find the difference in elevation between two points P and Q, a level was set upon the line PQ, 30 m from P and 1280 m from Q. The reading obtained at P and Q were respectively 0.545 m and 3.920 m. Find the true difference in elevation between P and Q considering curvature and refraction errors? (

9. In order to find the difference in elevation between two points P and Q, a level was set upon the line PQ, 30 m from P and 1280 m from Q. The reading obtained at P and Q were respectively 0.545 m and 3.920 m. Find the true difference in elevation between P and Q considering curvature and refraction errors? (

Structural Analysis
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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9. In order to find the difference in elevation between two points P and Q, a level was set upon the line PQ, 30 m from P and 1280 m from Q. The reading obtained at P and Q were respectively 0.545 m and 3.920 m. Find the true difference in elevation between P and Q considering curvature and refraction errors? 10. The known elevation of BMA is 625.00 ft. A 3-course closed circuit was set up and 5 intermediate front sites were taken. The following BS and FS are provided. Complete the table, do a page check, determine the misclosure, and determine the adjusted elevations of all points if necessary. Station BS HI FS Elevation Adj. Ele. ВМА 2.85 625.00 2+00 4.56 2.77 TP1 3.68 3.75 3+00 3.12 4.12 3+50 3.59 4.32 4+00 4.18 4.52 4+50 4.17 4.26 TP2 4.05 2.59 ВМА 4.15
Transcribed Image Text:9. In order to find the difference in elevation between two points P and Q, a level was set upon the line PQ, 30 m from P and 1280 m from Q. The reading obtained at P and Q were respectively 0.545 m and 3.920 m. Find the true difference in elevation between P and Q considering curvature and refraction errors? 10. The known elevation of BMA is 625.00 ft. A 3-course closed circuit was set up and 5 intermediate front sites were taken. The following BS and FS are provided. Complete the table, do a page check, determine the misclosure, and determine the adjusted elevations of all points if necessary. Station BS HI FS Elevation Adj. Ele. ВМА 2.85 625.00 2+00 4.56 2.77 TP1 3.68 3.75 3+00 3.12 4.12 3+50 3.59 4.32 4+00 4.18 4.52 4+50 4.17 4.26 TP2 4.05 2.59 ВМА 4.15
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