In order to determine the stadia interval factor of a transit on the field, the transit was set up at a certain point on the ground. Observations were made on the rod placed at a distance of 100 m from the instrument and the rod readings were 3.125 and 2.123 for the upper and lower stadia hair respectively. If the instrument interval used has an internal interior focusing telescope, what would be the stadia interval factor of the instrument?

In order to determine the stadia interval factor of a transit on the field, the transit was set up at a certain point on the ground. Observations were made on the rod placed at a distance of 100 m from the instrument and the rod readings were 3.125 and 2.123 for the upper and lower stadia hair respectively. If the instrument interval used has an internal interior focusing telescope, what would be the stadia interval factor of the instrument?

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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2 points B & C were observed from point A where the instrument was set up at a height of 1.25m. Points B & C are ahead of point A. The surveyor used an internally focusing telescope with a stadia interval factor of 100. The following data was recorded as observed for points B & C.(a) What is the stadia constant of the instrument?(b) What is the slope distance between the telescope at point A and the rod reading at point B?(c) What is the difference in elevation between point B & C?(d) What is the slope distance between the ground surface at point B and the ground surface at C?(e) What is the elevation of point C if point A is at an elevation of +0316.15m 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.
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.
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A tachometric surveying was conducted to obtain some readings forinaccessible points, where it was found that the multiplying and additiveconstants are 98 and 0.1, respectively. The instrument was setup at point C and the readings listed in the table were taken while the staff was held vertically. Calculate the horizontal distance between BM and station D. Also, calculate the reduced level of station D. Figure 1 shows a schematic view of the site.
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, +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)
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