Plot the sketch PROBLEM: Given the following data for a three point resection problem:LINEAZIMUTH (SOUTH)DISTANCE7321.56 m13111.78 mАВ94° 33' 33"BC248° 45' 55"The instrument is at point O, south of A, B, and C with angle BOA = 21° 11' 00", and angle AOC = 36°26' 28".

Answered: Image /qna-images/answer/cde1424c-5ff6-429a-8db6-c76a5f928137.jpg

Answered: LINE AZIMUTH (SOUTH) DISTANCE 7321.56 m…

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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(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
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
S LINEAR ERROR OF CLOSURE N Problem 2: W E U For the given data of a transit-tape survey. S 1. Determine the latitudes and departures of the lines. 2. Determine the linear error of closure. 3. Determine the bearing of the line of the side error. V 4. Determine the relative precision. LINE LENGTH (m) BEARING LATITUDE DEPARTURE +N -S +E -W Y AB 495.85 N 05°30'E BC 850.62 N 46°02'E CD 855.45 S 67°38'E DE 1020.87 S 12°25'E EF 1117.26 S 83°44'W FA 660.08 N 55°09'W Total ΣNL ΣSL ΣED EWD 3 RVE
*Refer to the following notes for reciprocal levelling taken with simple level. Determine (a) the true R.L. of B (b) Collimation correction (c) Refraction correction (d) Combined correction Instrument Station A B Staff reading on A B 1.305 2.725 1.355 2.050 Remarks Dist. AB = 905 m R.L of A = 100 m collimation error -0.003/150
Three triangulation stations A, C and E are points on the shore whose position were observed from X. The angles were measured using a sextant from the boat at X to the three triangulation stations. The following data were recorded during the survey procedure: Distance AC = 700m Distance CE = 680m Angle ACE = 148o Angle AXC = 45o Angle CXE = 35o Angle CAX = 70o a.) Compute the angle CEX. b.) Compute the distance AX. c.) Compute the distance XE.
I need Answer of A only A. 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.
PROBLEM II 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 following data was recorded as observed for points B & C. factor of 100. The Vertical Stadia Hair Readings (m) ROD/Point Angle Upper Middle Lower 25°15" 2.316 1.877 1.438 45°57 3.333 2.011 0.689 (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 (e) What is the elevation of point C if point A is at an elevation of +0316.15m above mean sea level?
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/km. The instrument is found to have an inclined collimation error of 1.0 mm/km, so the sight distances were kept to approximately 50 ± 5 m. If the difference in elevation observed is 15.601 m, what is the estimated error in the final elevation difference?
A line of three-wire differential levels goes from benchmark Gloria to benchmark Carey. The length of the line was determined to be 2097 m. The instrument had a stated compensator accuracy of pm 1.4 mm/ km. The instrument–rod combination had an estimated reading error of 0.4 mm per 40 m. 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? If benchmark Gloria had a fixed elevation of 231.071 m and Carey had a fixed elevation of 246.660 m, did the job meet acceptable closure limits at a 95% level of confidence? Justify your answer statistically.
Question 8 The angles about a point P were measured with the following number of measurements taken shown in the table below. Measured Angle Repitition Value APB 31° 15' ВРС 12° 16' 4. СPD 41° 28' 4 DPA 84° 53' Calculate the most probable value of angle BPC O 12°14' O 12°17 O 12°18' O 12°15'
The following tacheometric observations were amde 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. Determine the elevations of P and Q if the elevation of A is 75.5 m. The stadia constant k and c are respectively 100 and 0.0m. Show an illustration of your work.
(b) The following observations were made in a tachometric survey: Staff Vertical Hair Remark Inst. stadon Height of axis (m) station angle readings (m) - 5°30 0.905, 1.455, RL of BM 2.005 A 1.345 BM =450.500 m %3D + 8°0 0.755, 1.655, 2.555 1.345 + 10°0 1.500, 2.250, 3.000 1.550 Calculate the RLs of A, B, C, and the gradient of the line AC. The tachometer is fitted with an anallatic lens and the multiplying constant is 100.

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LINE AZIMUTH (SOUTH) DISTANCE 7321.56 m 13111.78 m АВ 94° 33' 33" BC 248° 45' 55" The instrument is at point O, south of A, B, and C with angle BOA = 21° 11' 00", and angle AOC = 36° %3D 26' 28".