Stadia Leveling To determine the distance between two points A and B, a tacheometer was set upat P and the following observations were recorded.(a) Rod at ARod readings = 2.225, 2.605, 2.985Vertical Angle = + 7°54'(b) Rod at BRod readings = 1.640, 1.920, 2.200Vertical Angle = - 1°46'(c) Horizontal Angle APB = + 68°32 30"Elevation of A = 315.600mk = 100mc = 0.00mDetermine the distance AB and the elevation of B.

Answered: Image /qna-images/answer/bb030be4-0bd2-4e7e-9c19-3583f87e0595.jpg

Answered: To determine the distance between two…

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 horizontal collimation test is performed on an automatic level following the procedures described in Section 4.15.5. With the instrument setup at point 1, the rodreading at A was 3.886 ft, and to B it was 3.907 ft. After moving and leveling the instrument at point 2, the rod reading to A was 4.094 ft and to B was 4.107 ft. What isthe collimation error of the instrument and the corrected reading to A from point 2?
PLEASE FIND SOLUTION THAT WILL COME UP WITH THE SAME ANSWER The two-peg test is used to determine if the line of sight of an engineer’s level is in adjustment, and the following rod readings are taken: with instrument set up near A, rod reading on A is 1.623 m, rod reading on B is 2.875 m; with instrument set up near B, rod reading on B is 1.622 m, and rod reading on A is 0.362 m. i. The correct rod reading on A to give a level line of sight with the instrument still set up near B should be? answer: 0.366 m ii. In order to adjust the line of sight, the horizontal cross hairs should be moved? answer: Upward by 0.004 m
In the two-peg test of a dummy level, the following observations are taken. On point A On point B INSTRUMENT SET UP at M 2.682 1.239 INSTRUMENT SET UP at P 1.876 0.565 Point M is equidistance from both A and B with 92 meters, while P is 2.50m away from A along the extension of line AB. Requirements: Determine the true difference in elevation between point A and B. With the level still set up at P, determine the rod reading on A and B to which the line of sight should be adjusted. If the instrument needs to be adjusted, determine the following false difference in elevation inclination of the line of sight and the error in the reading of far rod A and B instrument set up at P.
A tacheometer was set up at B.M and the following observations were made with a leveling staff held vertically at P and Q. Ins: Station Staff Station Vertical Angle Hair Readings Bearings Remarks B.M P +10° 00’ 1.050, 1.103, 1.156 40° R.L of B.M =1958.500 ft Q -15° 00’ 0.952, 1.055, 1.158 140° The constant of instrument (f/i) = 100, Height of instrument = 5.15 ft Compute: The horizontal distance between P and Q Reduced Levels of P and Q Grade between P and Q
An angle APB is measured at different times using various instruments and procedures. The results, which are assigned certain weights, are as follows: 46-13-28, wt 1; 46-13-32, wt 2; 43-13-30, wt 3; and 43-13-32 , wt 4. What is the most probable value of the angle?
The following data were obtained by a stadia measurement; vertical angle is 30deg23mins, and observed stadia intercept is 2.20m. The stadia interval factor at the measurement used 95.50m and C is 0.30m, if the height of the instrument is 1.62m, and the rod reading is taken 1.95m. Determine the D, V, S and the Difference in elevation. (D= distance, V= Vertical Distance, S= Sight distance) Topic: Tacheometric Surveying Pls answer in COMPLETE solution. DIAGRAM/ILLUSTRATION of the solution is a must, for better understanding. 3 dec places all answers. THANK YOU.
A tacheometer is setup at A and the readings on the staff at B are 1.77m, 2.12m, 2.34m and the inclination of line of sight is + 1° 9ꞌ48". Calculate the horizontal distance between A and B. Take k = 100, c = 0.3?
Q#2: An open traverse survey using theodolite has been carried out and following deflection angles were observed: Stations Observed Deflection Angles α Designation of Deflection Angle A 280 25’ 00’ (L) B 680 03’ 30’’ (L) C 1200 34’ 00’’ (L) D 580 30’ 00’’ (R) E 1080 13’ 30’’ (L) F 160 50’ 00’’ (R) G 1100 00’ 30’’ (L) Compute error of closure in above deflection angles. Find out the adjusted deflection angles using computed error in part (a).
Using a 1 second theodolite the following clockwise angles were measured in a closed traverse. What is the angular closing error and is this acceptable? 163° 27' 36": 324° 18' 22": 62° 39' 27": 330° 19' 18"; 181° 09' 15"; 305° 58' 16"; 188° 02' 03"; 2920 53' 02" 131° 12' 50". If you know a constant of allowable misclosure is 2.5, for these exterioral clockwise angles.
A tacheometer with a stadia constant of 0.30m, and stadia interval factor of 100, was set up on the line between two points A and B. The following hair readings were observed. *Inserted Photo* If the instrument height is 1.43m and it is set up on a point with elevation 14.72 m, determine the elevation of A.
Surveying Question: A differential leveling circuit starts at benchmark Concrete Benchmark (Elevation=232.051m) goes out to an unknown benchmark and then continues to a known control point (Elevation=227.975m). Two turning points are used with the measurements included in the attached table. Determine the elevation of the unknown benchmark Determine the order and class of the survey. For First order Class 1: Allowable Error= +/- 4(K)1/2 Range of Constant= m less than/equal to 4 For First Order Class 2: Allowable error= +/- 5(K)1/2 Range of constant= m greater than/equal to 4, and m less than equal to 5 (between 4 and 5) For Second Order Class 1: Allowable error = +/- 6(K)1/2 Range of Constant = m greater than/equal to 5, and m less than equal to 6 (between 5 and 6) For Second Order Class 2: Allowable error = +/- 8(K)1/2 Range of Constant = m greater than/equal to 6, and m less than equal to 8 (between 6 and 8) For Third Order, Any Class: Allowable Error = +/-12(K)1/2 Range…
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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