Prob 1. The following data were obtained by stadia observation vertical angle, +12 deg 30 min; upper stadia hair reading and lower stadi hair readings, 4.500 and 3.250m, respectively. The rod reading was taken 3.875 m above the stadia point at A and the height of instrument above th instrument station, B, is 1.620m. If the stadia interval factor is 99.5 and th instrument constant is 0.381m, compute the horizontal distance between th instrument station and the stadia point. Compute also the difference elevation between the two ground points.

Prob 1. The following data were obtained by stadia observation vertical angle, +12 deg 30 min; upper stadia hair reading and lower stadi hair readings, 4.500 and 3.250m, respectively. The rod reading was taken 3.875 m above the stadia point at A and the height of instrument above th instrument station, B, is 1.620m. If the stadia interval factor is 99.5 and th instrument constant is 0.381m, compute the horizontal distance between th instrument station and the stadia point. Compute also the difference elevation between the two ground points.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

The following data were obtained by stadia observation: vertical angle, +12deg 30 min; upper stadia hair reading and lower stadia hair readings, 4.500 and 3.250m, respectively. The rod reading was taken at 3.875m above the stadia point at A and the height of instrument above the instrument station, B, is 1.620m. If the stadia interval factor is 99.5 and the instrument constant is 0.381m, compute the horizontal distance between theinstrument stationand the stadia point. Compute also the difference in elevation between the two ground points.
The upper and lower stadia hair readings on a stadia rod held at station B were observedas 3.50 and 1.00m respectively, with the use of a transit with an interval focusingtelescope and having a stadia interval factor of 99.5. The height of the instrument abovestation A is 1.45m and the rod reading is taken at 2.25m. If the vertical angle observed is-23034’, determine the following:a. Inclined stadia distanceb. Difference in elevation between the two stationsc. The elevation of station B, if the elevation of station A is 155.54m above mean sealevel.
The following data were obtained by stadia observation: vertical angle, + 12deg 51 min; upper and lower stadia hair reading, 4.311 and 3.730 m, respectively. the rod reading was taken at 3.785m above the stadia point A and the height of instrument set up at point B is 1.620m. If the stadia interval factor is 99.5 and the stadia constant is 0.381m, what is the vertical distance? a.54.098 b.94.780 c.12.620 d.26.364
The following data were obtained by stadia observation: vertical angle, + 12deg 51 min; upper and lower stadia hair reading, 4.311 and 3.730 m, respectively. the rod reading was taken at 3.785m above the stadia point A and the height of instrument set up at point B is 1.620m. If the stadia interval factor is 99.5 and the stadia constant is 0.381m, what is the difference in elevation? a.10.455 b.24.109 c.20.852 d.34.321
The following data were obtained by stadia observation: vertical angle, +12⁰30’; upper stadia hair reading and lower stadia hair readings, 4.500 and 3.250 m, respectively. The rod reading was taken at 3.875 m above the stadia point at A and the height of instrument above the instrument station, B, is 1.620 m. The stadia interval factor is 99.5 and the instrument constant is 0.381 m. Compute the difference in elevation between the two ground points. (Type your answer using 3 decimal places, numerical value only, no need to include the units)
Problem 4: The following data were obtained by stadia observation: vertical angle, +12°30': upper stadia hair reading, and lower stadia hair readings, 4.500 and 3.250 m, respectively. The rod reading was taken at 3.875 m above the stadia point at A and the height of the instrument above the instrument station, B, is 1.620 m. The stadia interval factor is 995 and the instrument constant is 0.381 m. a. Compute the horizontal distance between the instrument station and the stadia point. b. What is the vertical distance from the horizontal axis of the instrument to the rod reading? c. What is the inclined distance from the center of the instrument to the rod reading? d. Compute the difference in elevation between the two ground points.
A stadia interval of 1.325 m is observed on a stadia rod held over a turning point using an engineer's transit with a stadia interval factor of 98.5 and a stadia constant of 0.300 m. The elevation of the instrument station is 379.246 m and the height of instrument above the station is 1.245 m. If the rod reading is 1.649 m and the vertical angle observed is - 15°17', determine the horizontal, vertical, and inclined distances by exact stadia formulas. Also, determine the difference in elevation between the turning point and the instrument station.
Transit is set up at A observed a stadia intercept of 2.2 m at a vertical angle of +18°23’. The stadia interval factor of the instrument used is 95.5 and stadia constant of 0.3 m. If the height of instrument is 1.62 m, and the rod reading is 1.95 m. Determine the vertical distance from the center of the instrument to the point on rod bisected by the horizontal cross hair.
The following tacheometric observations were made from station A to stations 1 and 2. The height of the instrument above the ground was 1.52 m. Take stadia interval factor and constant as 100 and 0, respectively. If the staff was inclined by 1° to the vertical, solve for the following:a. Error in horizontal distance if the staff is inclined towards theinstrument for the line A-1. b. Error in the vertical distance if the staff is inclined away from theinstrument for the line A-2. c. If the elevation of point 1 is 115.673 m, determine the correctelevation of point 2.
use of stadia reduction tables. From an instrument station a backsight was made on a turning point and the following data were obtained: Upper stadia hair reading = 1.745m Rod reading = 1.495m Lower stadia hair reading = 1.245m Stadia constant = 0.381m Stadia interval factor = 95.5m Observed vertical angle = -15 30’ Height of instrument above occupied station = 1.495m Elevation of turning point = 463.24m Determine the elevation of the instrument station using values taken from stadia reduction tables.
The upper and lower stadia hair readings on a stadia rod held at station B were observed as 3.50 and 1.00 m, respectively, with the use of a transit with an internal focusing telescope and having a stadia interval factor of 99.5. The height of the instrument above station A is 1.45 m and the rod reading is taken at 2.25 m. If the vertical angle observed is − 23 ∘ 34 ′ , what is the elevation of station B if the elevation of station A is 155.54 m above mean sea level?
The upper and lower stadia hair readings on a stadia rod held at station B were observed as 3.50 and 1.00 m, respectively, with the use of a transit with an internal focusing telescope and having a stadia interval factor of 99.5. The height of the instrument above station A is 1.45 m, and the rod reading is taken at 2.25 m. Determine the horizontal distance between points A and B, and the elevation of point B, if the elevation of point A is 155.54 m, above mean sea level.