(b) The following observations were made in a tachometric survey:StaffVerticalHairRemarkInst.stadonHeight ofaxis (m) stationanglereadings (m)- 5°300.905, 1.455, RL of BM2.005A1.345BM=450.500 m%3D+ 8°00.755, 1.655,2.5551.345+ 10°01.500, 2.250,3.0001.550Calculate the RLs of A, B, C, and the gradient of the line AC. The tachometer is fittedwith an anallatic lens and the multiplying constant is 100.

The principle of tachymetric testing is based on the isosceles asset. It means; the ratio of the…

Answered: (b) The following observations were…

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 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
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.
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
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"
Jr, a civil engineer was to estimate the height of a transmission tower (G). He performed trigonometric leveling from 3 stations E, Y&A, using slope distances and vertical angles. The survey data are as follows: SEG = 678.56; açEG= 5°30' Syg = 555.31; aye= 3°10' SAG = 900.31; a AG= 2°45' Elevations of stations above the MSL datum H: = 253.31 ft. Hy= 287.64 ft. H= 275.11 ft. Compute the elevation at the top of the cell tower from pt. E Select the correct response: 253.37 ft 318.35 ft 412.37 ft 320.32 ft
Jr, a civil engineer was to estimate the height of a transmission tower (G). He performed trigonometric leveling from 3 stations E, Y&A, using slope distances and vertical angles. The survey data are as follows: SEG = 678.56; aEG= 5°30' Syg = 555.31; aye= 3°10' SAG = 900.31; a 46= 2°45' Elevations of stations above the MSL datum HE = 253.31 ft| Hy= 287.64 ft. H= 275.11 ft. Compute the elevation at the top of the cell tower from pt. Y Select the correct response: 412.35 ft 318.32 ft 253.32 ft 320.35 ft
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.
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.
Jr, a civil engineer was to estimate the height of a transmission tower (G). He performed trigonometric leveling from 3 stations E, Y&A, using slope distances and vertical angles. The survey data are as follows: SEG = 678.56; aEG= 5°30' Syg = 555.31; ayg= 3°10' SAG = 900.31; Elevations of stations above the MSL datum a s= 2°45' H = 253.31 ft. Hy= 287.64 ft. H= 275.11 ft. Compute the elevation at the top of the cell tower from pt. A Select the correct response: 253.32 ft 318.31 ft. 320.36 ft 412.33 ft
1. A tachometric surveying was performed by a surveyor. The transit used has a stadia interval factor of 90.98 and stadia constant of 0.16m the instrument was set at station O on the line between station C and E. The following stadia readings were taken Position of staff Vertical angle 7-18°37'02" 6°15'58" Station C Station E upper 1.432m 2.825m Stadia hair reading center 1.195m 2.049m Determine the horizontal and vertical distance between C and E lower 0.957m 1.274m
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 difference of elevation between B and C was taken by a survey party using different trials and paths. Compute the probable elevation of point C if it is above point B. Elevation of point B is 825 m. a. 823.5211m b. 824.9612m c. 826.2413m d. 825.8365 m

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(b) The following observations were made in a tachometric survey: Hair Remark Height of axis (m) station Staff Vertical Inst. stadon angle readings (m) - 5°30 0.905, 1.455, RL of BM =450.500 m 1.345 BM 2.005 1.345 + 8°0 0.755, 1.655, 2555 B