ANSWER KEY=D 108.1502m∆h 22.4596m Problem 5.9A tangential tacheometry is conducted by a survey party. The instrument is set atstation D with a height 1.12m. The rod reading on station E is recorded as follows.Vane 1Vane 2Height of the vanefrom point E3m0.5mVertical Angle12 41'11 25'Determine the difference in elevation and horizontal distance between station D andE.

Answered: Image /qna-images/answer/cd3f1d83-8910-4412-922e-1098e4235dbe.jpg

Answered: ermine the difference in elevation and…

Engineering

Civil Engineering

ermine the difference in elevation and horizontal distance between station D and

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

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
3 A tacheometer was set up at B.M and the following observations were made with a 2 10 leveling staff held vertically at A and B. Instr. Staff Vertical Hair Readings Bearings Remarks Station Station Angle В.М A +10° 00' 1.060, 1.105, 1.176 40° R.L of В.М -15° 00' 0.962, 1.075, 1.188 140° =Reg#. (ft) The constant of instrument (f/i) = 100, Height of instrument = 5.15 ft, Reg# 334 Compute: a) The horizontal distance between A and B b) Reduced Levels of A and B c) Grade between A and B
STA. B.S. F.S. ELEV. 7.994 388.84 9.154 6.443 5.604 6.403 4 9.374 7.233 12.314 5.723 11.414 4.603 5.093 a. Complete the differential leveling tabulatior b. Find the difference in elevation of staion 7 and station 4. c. Find the height of the instrument of station 3 d. Show the arithmetic check. "
OV VE fr An instrument was setup at P and angle of elevation to a vane 4 m above the foot of staff held at Q was 9° 30'. The horizontal distance between P and Q was known to be 2000 m. What is the R.L. (in m) of staff station Q? [Given that the R.L. of instrument axis was 2650.38 m and consider refraction and curvature corrections]
3. Given the respective reading from an internally focused instrument from a stadia rod are as follows; Upper stadia reading = 1.100m Middle reading = 1.195m Lower stadia reading = 1.290 A. What is the rod intercept S? B. Determine the stadia distance C. Compute the elevation of sighted station if the height of level instrument from the occupied station is 1.50m. Assume elevation of station occupied is 100m
Question 13 In a 3-wire Leveling, the mean reading for the backsights or foresights is computed as: O sum of the middle reading, upper reading, and lower reading divided by 3. O sum of the upper reading and lower reading divided by 2. sum of the upper reading and lower reading divided by 3. O sum of the middle reading, upper reading, and lower reading divided by 2.
A, C and D are three triangulation shore signals whose positions were determined by the angle ACD = 150° and the sides AC is 810m and CD = 720m. A sounding at B was taken from the boat and the angle ABC = 39°30' and angle CBD = 33°30' were measured simultaneously by sextants from the boat to the three signals on the shore. Find the angle CDB.
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.
Two pegs A and B are driven in the ground at a distance of abour 120 m. A dumpy level is set up at station Q exactly mid-way between pegs A and B. The staff readings on peg A and B were found to be 3.513 m and 3.149 m. The instrument was then moved and set up at a point P beyond peg A, in line BA produced at a distance of 20 m from A. The staff readings on pegs A and B were 1.763 m and 0.847 m respectively. What is the true difference in elevation between the two points? With the level in the same position at P what rod readings on B should the line of sight is adjusted. Check these reading against the true difference in elevation previously SOLVE THE FOLLOWING PROBLEMS: Problem Sketch Solution Answer
Two pegs A and B are driven in the ground at a distance of abour 120 m. A dumpy level is set up at station Q exactly mid-way between pegs A and B. The staff readings on peg A and B were found to be 3.513 m and 3.149 m. The instrument was then moved and set up at a point P beyond peg A, in line BA produced at a distance of 20 m from A. The staff readings on pegs A and B were 1.763 m and 0.847 m respectively. What is the true difference in elevation between the two points? With the level in the same position at P what rod readings on B should the line of sight is adjusted. Check these reading against the true difference in elevation previously determined. a. Sketch b. Solution C. Answer
In a 3-wire Leveling, the mean reading for the backsights or foresights is computed as: O sum of the middle reading, upper reading, and lower reading divided by 3. sum of the upper reading and lower reading divided by 2. O sum of the upper reading and lower reading divided by 3. sum of the middle reading, upper reading, and lower reading divided by 2.
17.The height of a tower was determined by trigonometric leveling. The instrument was set up at point A, a distance of 75m from the base of the tower. The height ofinstrument set up was measured to be 1.22m. The top of the tower was observed at an angle of + 35o22’. Calculate the height of tower.