Stadia observation yielded the following results: vertical angle, +13°20': top stadia hair reading, 4.500 m, and lower stadia hair reading, 3.250 m, respectively. The rod reading was taken at A, which is 3.875 m above the stadia point, and the height of instrument, which is 1.620 m above the station B. The instrument constant is 0.381 m, and the stadia interval factor is 99.5. Compute the difference in elevation between the two ground points. Select the correct response: 33.493 30.253 25.743 22 503

Structural Analysis
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Author:KASSIMALI, Aslam.
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Chapter2: Loads On Structures
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Stadia observation yielded the following results: vertical angle, +13°20': top stadia hair reading, 4.500 m, and lower stadia hair reading,
3.250 m, respectively. The rod reading was taken at A, which is 3.875 m above the stadia point, and the height of instrument, which is
1.620 m above the station B. The instrument constant is 0.381 m, and the stadia interval factor is 99.5. Compute the difference in
elevation between the two ground points.
Select the correct response:
33.493
30.253
25.743
22.503
Transcribed Image Text:Stadia observation yielded the following results: vertical angle, +13°20': top stadia hair reading, 4.500 m, and lower stadia hair reading, 3.250 m, respectively. The rod reading was taken at A, which is 3.875 m above the stadia point, and the height of instrument, which is 1.620 m above the station B. The instrument constant is 0.381 m, and the stadia interval factor is 99.5. Compute the difference in elevation between the two ground points. Select the correct response: 33.493 30.253 25.743 22.503
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