2. The following are the observations made on thesame angle:47°26'13" 47°26'18" | 47°26'10" | 47°26'15"47°26'16" 47°26'12" 47°26'09" | 47°26'15"47°26'14" 47°26'18"Determine:c. The standard deviation

Most probable mean value - v = sum of all anglesnumber of values⇒v = 474°22'20''10⇒v = 47°26'14''…

Answered: The following are the observations made…

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 tacheometer was set up at station P and observations were made to two stations Q and R. The vertical angles to Q and R were 5°30’ and 1°08’ The cross-hair readings at Q were 2.105, 2.47 and 2.835 and those at R were 2.215, 2.56 and 2.905. The staff were held vertical in both cases. The instrument constants were 100 and 0.3. The reading from P to a BM of RL 285.35m was 2.255. The horizontal angle QPR measured was 58°30’. Find the distance QR, the gradient from Q to R and the RLs of Q and R.
A Tachometer is set up at an intermediate point on a survey line PQ and the following observations were made on a vertically held staff. Staff intercept 1.235 m 1.115 m Axial hair readings 2.445 m 1.335 m Staff station Vertical angle 15° 20 ' 50" 12° 40 ' 10 " i) Compute length of the line PQ. 2.5 ii) Compute R.L of Q, if R.L of P is 189.66 m 2.5
Distance between the two points Pand Q was required to be determined from tacheometer fitted with an anallactic lens (k = 100, C = 0). With the instrument at P and staff at Q, the observations made were a vertical angle of + 8°43' and staff intercept of 1.805 m held vertical. At a later stage, it was found that constants of the tacheometer were 100.5 and 0.7. What would be the percentage error in the computed distance PQ? %3D
(9) The following observations were made in a tacheometric Survey. Inst. Station A A B Hair Height staff vertical of axis station angle readings 1.345 BM 1345 B 1.550 -5° 30' 0.905, 1.455, 2.005 Remark RL of BM +8°0' 0.755,1.655, = 450-500 m +10 2.555 1.500, 2.250,3.000 Calculate the RLs of A, B and C, and horizontal distances AB and BC. The tacheometer is fitted with an anallatie Lens and the multiplying constant is 100
51 Dr NK Assignment Dobry 2 determin 2021 To determine the distance between two points P and Q and elevation of Q, following observation were made: (2) Dr aterat ² Height of tacheometer at P = 1.280 m Vertical angle at P = + 4° 25' 20" Staff reading (with staff vertical) = 1.545, 1.905, 2.265 R.L. of P= 123.265 m. 123.265 m Dmuchantalones Calculate the unknown parameters after establishing the fundamental relations.
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34 Assignment In order to carry out tacheometric surveying, following observations wer taken through a tacheometer set up at station P at a height 1.235m. Compute the horizontal distance of S from P and reduced level of statio at S if R.L. of station P is 262.575m Staff held Vertical at Dr Q R S Horizontal distance from P (m) 100 200 ? 20. K ENGIN Staff Reading (m) 1.01 2.03 3.465, 2.27, 1.280 2.03m 1.01m 100m 200m Angle of Elevation 0° 0° 5° 24' 40"
The following tacheometric observations were 'thade on two points P and Q from station A. Staff at Vertical Angle Staff Reading Upper Middle Lower P -5°12' 1.388 0.978 0.610 +27°35' 1.604 1.286 0.997 The height of the tacheometer at A above the ground was 1.55m. The stadia constant k and c are respectively 100 and 0.0m. Determine the elevations of P and Q if the elevation of A is 75.5 m Determine the horizontal distance between P and Q if Station A is between the two stations. Show an illustration of your work. « Previous Next
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.
3:14 م أنت الآن nt/1/CELS%202100%20Part%208%20%28C%29.pdf 4 /5 100% Q25. The length and angles obtained during surveying of a park with a 30 m tape is shown in the following Fig. 25. The tape used was 30 mm too long. 15 38 45 4.5 m 90 Fig. 25 i) Calculate the correct area of the park. 2.5 ii) Calculate the correct perimeter of the park. 2.5 Page 4 of 5 个 I
Question: 1 To determine the elevation of station A, the following observation were taken, the rod held vertically. The instrument fitted with Anallatic lens and value of constant was 100. Inst. Station Height of instrument Staff Station Vertical angle Staff Reading Remarks O 1.440 B.M - 5o40’ 1.332 1.896 2.460 R.L of BM = 158.205 m B 1.440 C.P +8o 20’ 0.780 1.263 1.746 A 1.380 C.P -6o 24’ 1.158 1.617 2.076 subject: Engneering surveyin 1
5) It is desired to determine the height of point B using point A whose height is 650.24 m. By installing Nivo (level) between A and B points, a reading is made as 564 mm on the Mira that is located in point A. Then the Nivo's binoculars were rotated and a forward reading of 3245 mm was made on the Mira held on point B. Based on this knowledge, what is the height of point B?

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The following are the observations made on the same angle: 47°26'13" | 47°26'18" | 47°26'10" | 47°26'15" 47°26'16" 47°26'12" | 47°26'09" | 47°26'15" 2. 47°26'14" 47°26'18" Determine: с. The standard deviation