A survey party preceded to do their stadia survey work as follows: The transit was set-up at point A with the line of sight horizontal rod readings were taken on rod at points B and C, which were then measured and have taped distances from A to 200m and 60m respectively. Stadia Intercept at Rod B and Rod C were observed as 2.001m and 0.600m respectively. The stadia constant was recorded as 0.30m. They went on to survey other points with the transit at point D, two points E and F were sighted and the data was recorded as follows: Stadia Intercept Vertical Angle Rod E 2.120m +04°22 Rod F 3.560m -03°17 1. Compute the Stadia Interval Factor. 2. Compute the horizontal distance EF. 3. Compute the difference in elevation between points E and F.

A survey party preceded to do their stadia survey work as follows: The transit was set-up at point A with the line of sight horizontal rod readings were taken on rod at points B and C, which were then measured and have taped distances from A to 200m and 60m respectively. Stadia Intercept at Rod B and Rod C were observed as 2.001m and 0.600m respectively. The stadia constant was recorded as 0.30m. They went on to survey other points with the transit at point D, two points E and F were sighted and the data was recorded as follows: Stadia Intercept Vertical Angle Rod E 2.120m +04°22 Rod F 3.560m -03°17 1. Compute the Stadia Interval Factor. 2. Compute the horizontal distance EF. 3. Compute the difference in elevation between points E and F.

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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A group of Geodetic engineering students conducted survey as follows: the transit was set up at a point A and with the line of sight horizontal, took rod readings with the rod at point B and C, which were then measured to have taped distances from A to 200 m., and 60 m. respectively. Rod B Rod C Stadia Interval 2.001 m 0.600 m The distance from the center of the instrument to the principal focus was recorded as 0.30 m. Then they went on to survey other points, with some of the data recorded as follows: with the transit at point D, two points E and F were sighted. Rod E Rod F Stadia Interval 2.120 m 3.560 m Vertical Angle + 4°22' - 3°17' a. Compute the stadia interval factor. b. Compute the horizontal distances DE and DF c. Compute the differences in elevation between points D and E and points D and F.
The following data were obtained by stadia observations: vertical angle is +7°11’, upper stadia hair and lower stadia hair readings are 1.857 m and 1.485 m, respectively. The stadia interval factor is known to be 98.12 and C is 0.301 m. The height of the instrument above the instrument station (point A) is 1.373 m and rod reading is taken at 1.894 m. Determine the following: elevation of the point sighted (point B) if the elevation of point A is 511 m. ANSWER: ___________ Difference in elevation between points A and B. ANSWER: ___________________
A transit with a stadia interval factor of 100 was set at C on the line between points A and B, and the following stadia readings were observed. If the stadia constant is 350 cm, determine the difference in elevation between points A and B. TACHEOMETRY DATA POSITION OF VERTICAL STADIA HAIR READINGS ROD ANGLE UPPER MIDDLE LOWER Rod held at A 16.25° -9.75° 1.33 m 1.16 m 0.99 m Rod held at B 1.91 1.75 1.59
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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?
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A line of three-wire differential levels goes from benchmark Gloria to benchmark Carey. The length of the line was determined to be 2199 m. The instrument had a stated compensator accuracy of ±0.3″. The instrument-rod combination had an estimated reading error of ±1 mm per km. The instrument is found have a inclined collimation error of 1.0 mm per km so the sight distances were kept to approximately 50 ± 5 m. If the observed difference in elevation is 15.601 m, what is the estimated error in the final elevation difference?
A transit with a stadia interval factor of 100.8 was set at C on the line between points A and B, and the following stadia readings were observed. Position of Rod Vertical Angle Hair Readings in meter Upper Middle Lower Rod at A +15°35' 1.330 1.175 1.020 Rod at B -8°08' 1.972 1.854 1.736 If the stadia constant is 0.381 m, determine the following: a. Length of line AB b. Difference in elevation between points A and B c. Find the horizontal distance from the transit to the rod held at B.