Q3: The following consecutive staff readings were taken on pegs at 15m interval on a continuously sloping ground: 0.895, 1.305, 2.800, 1.960, 2.690, 3.255, 2.120, 2.825, 3.450, 3.895, 1.685, 2.050. R.L. of station (A) where the reading 2.050 was taken is known to be 50.250m. From the last position of the instrument, two stations (B) and (C) with R.L. 50.800 m anc 51.000 m respectively are to be established without disturbing the instrument. Workou the staff reading at (B) and (C) and complete the work in a level book form. Use heigh of instrument method.

Q3: The following consecutive staff readings were taken on pegs at 15m interval on a continuously sloping ground: 0.895, 1.305, 2.800, 1.960, 2.690, 3.255, 2.120, 2.825, 3.450, 3.895, 1.685, 2.050. R.L. of station (A) where the reading 2.050 was taken is known to be 50.250m. From the last position of the instrument, two stations (B) and (C) with R.L. 50.800 m anc 51.000 m respectively are to be established without disturbing the instrument. Workou the staff reading at (B) and (C) and complete the work in a level book form. Use heigh of instrument method.

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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Q1 (a) Q1(b) RL TBM A RL TBM B RL TBM A RL TBM B AAA.AAA BBB.BBB ААА.АAА ВВB.ВBB 135.975 134.665 135.475 134.165 Q1. Table Q1 shows the levelling data obtained from field observations between two temporary benchmarks namely TBM 1 and TBM 2, respectively. Where, the total levelling distance between TBM 1 and TBM 2 is 250 metres. As a junior site civil engineer at the construction site, you have been assigned by a senior site civil engineer to finalise and evaluate the levelling data to ensure the levelling work complies with the levelling standard and procedures. Table Q1 Intermediate Backsight Foresight Remarks Sight 1.592 TBM 1 RL= AAA.AAA m 1.379 Point 1 1.384 Point 2 1.406 Point 3 1.675 2.052 CP1 1.354 1.704 СР2 1.320 0.907 СРЗ 0.940 1.315 СР4 0.832 1.507 CP5 -2.938 Soffit 1 -2.833 Soffit 2 -2.717 Soffit 3 1.546 TBM 2 RL=BBB.BBB m a) Finalise the levelling calculation using rise and fall method, i accuracy check, levelling misclosure and final reduced level for all observed points.…
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
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
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
a) In the process of taking a rod reading, one can eliminate parallax mathematically. Parallax is basically a systematic error. True False b) The page check in the field notes is a quality control measure to determine if the user satisfied 1st order class I leveling. True False C) The upper cross hair reading was 8.00 ft. The lower cross hair reading was 6.00 ft. The stadia constant was 100. The horizontal distance from the center of the level to the face of the level rod = 200.0 ft. True False
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Given the data shown: What is distance AB? 1. What is distance BC? a. 13.21 c. 12.03b. 15.92 d. 17.52 2. Find the DMD for side AB. a. -7.85 c. -5.99b. -6.51 d. -8.55 3. Find the DMD for side BC. a. -1.86 c. -0.96b. -2.02 d. -1.75 4. Find the DMD for side CD.a. 85.65 c. 82.40b. 72.05 d. 80.66 5. Find the DMD for side DA.a. 75.65 c. 73.56b. 74.03 d. 72.76 6. Find the area using DMD Method.a. 1215.98 c. 1449.66b. 1625.31 d. 1315.22
5 6 7 Q4/ In this following data (2.01, 1.27. 1.48, 0.98. 2.85, 1.50, 1.12. 1.84. 1.23, 2.95. 0.90 ) If the elevation of first point 101.11 m. determine the elevation of other points such as the (2* Fs B.S FS BS FS Fs & 4*,6*. 8*, ) are the turning point?
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.