Engr. Madrid performed differential levelling between two benchmarks, she then set up a dumpy level at a convenient location along the general route between BM1, which has an elevation of 463.80 m, and BM2 whose elevation is 457.67 m. A backsight of 1.25 is taken on BM1, then the rodman goes forward to TP1 having a reading of 5.32. The level is moved forward and and was set again to another location. A backsight reading of 9.98 m is taken on the rod held at TP1. At the last set up of the instrument again, a foresight reading of 12.87 was taken at BM2 and a backsight reading of 6.11 m was taken at TP2. Upon checking the levelling notes, the recorder noticed that she missed to take down the foresight reading at TP2. If the survey was correctly done, what could be the foresight reading at TP2? Select the correct response: 6.47 m 4.67 m 5.28 m 5.82 m

Engr. Madrid performed differential levelling between two benchmarks, she then set up a dumpy level at a convenient location along the general route between BM1, which has an elevation of 463.80 m, and BM2 whose elevation is 457.67 m. A backsight of 1.25 is taken on BM1, then the rodman goes forward to TP1 having a reading of 5.32. The level is moved forward and and was set again to another location. A backsight reading of 9.98 m is taken on the rod held at TP1. At the last set up of the instrument again, a foresight reading of 12.87 was taken at BM2 and a backsight reading of 6.11 m was taken at TP2. Upon checking the levelling notes, the recorder noticed that she missed to take down the foresight reading at TP2. If the survey was correctly done, what could be the foresight reading at TP2? Select the correct response: 6.47 m 4.67 m 5.28 m 5.82 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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DIFFERENTIAL LEVELING For the given differential level notes. Determine the station with the highest and 2. lowest elevation. Station BS HI FS Elevation BM-A 1.73 346.50 m TP-1 2.50 1.85 ТР-2 2.76 1.05 ТР-3 3.15 1.20 BM-B 1.93 0.74 ТР-4 1.67 0.98 TP-5 2.12 1.84 BM-C 1.77
Question 2 (2) The azimuth from Pt 10 to Pt 1 is 348° 30'. The Azimuth from Pt 1 to Pt 2 is 327° 15'. The baseline, (i.e, alignment) is from Pt 10 to Pt 1 to Pt 2. What is the angle right at Pt 1 with Pt 10 as a backsight and Pt 2 as foresight Answer: Question 3 (1) What is the deflection angle from the question #2
Table Q3 Staff Readings Remarks 2.491 (BS): TBM 1 TBM 1 (24.918m) 2.469 (FS); 1.758 (BS) CP1 3.026 (IS) R1 2.267 (IS) R2 2.082 (IS) R3 1.176 (FS); 2.064 (BS) CP2 3.012 (FS); 1.25 (BS) CP3 3.052 (IS) R4 1.977 (IS) R5 2.036 (IS) R6 2.013 (IS) R7 2.157 (IS) R8 road surface immediately below B1 -3.896 (IS) B1 0.908 (FS); 1.736 (BS) CP4 1.25 (IS) R9 2.292 (IS) R10 2.102 (IS) R11 2.056 (IS) R12 3.511 (FS) TBM 2 TBM 2 (23.143m) BS BACKSIGHT; IS = INTERMEDIATE SIGHT; FS = FORESIGHT 53
Q2 In leveling works along a longitudinal section, the natural land levels that were taken at 30 m distances were as follows: 15.27m, 14.98m, 15.02m, 14.84m, 14.75m, 15.30m, 15.00m then, if the longitudinal section of the proposed road begins with the level of its first point with a value less than 6.3 than the level of the natural ground at the last point and ends at the last point of the road with a level greater than the level of the natural ground at the first point by 0.16 so that the slope is uniform at each of its points. Calculate the amount of cutting and burial.
An inverse method of leveling is executed between two existing concrete structures and across a concrete wall located midway between the two structures. All rod readings, as indicated in the sketch, were taken with the rod held upside down. From the data portrayed, if the elevation of A (bottom of the concrete beam of the first structure) is 240.05 m., the elevation of the bottom of the concrete beam of the second structure (indicated as C) should be
A differential levelling was conducted from BM1 to BM2 30 km apart. BM1 is at elevation 124. 08 m. The backsight distances averages 150 m in length and the foresight distances averages 100 m. the recorded elevation of BM2 was 274.11 m. If the level used is out of adjustment such that when the bubble was centered the line of sight was inclined 0.003 m upward in distance of 100 m. What would be the corrected elevation of BM2?
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Given the following differential notes for a three-wire leveling from BM1 to BM2, compute for the elevation at BM2 and solve for the horizontal distance between TP1 and TP2. Assume stadia interval factor equal to 100 and instrument constant equal to zero. STATION BS МEAN HI FS МEAN ELEVATION 5.27 BM1 3.97 54.38 2.67 3.27 3.81 ТР1 2.01 2.55 0.75 1.3 3.18 8.52 ТР2 1.88 7.16 0.58 5.81 2.91 8.5 ТРЗ 1.515 7.13 0.325 5.77 3.68 8.29 ТР4 2.56 6.92 1.43 5.56 7.81 6.67 ТР5 6.49 5.15 5.16 3.63 4.25 BM2 2.7 1.16 О а. 44.78/654 O b. 41.24/523 O c. 40.35/533 O d. 40.06/512
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Starting from point A of reduced level 200, the levels were taken to another point B. The reduced level of point B was found to be 198.295. In order to check the leveling work flying levels were taken from point B to point A and the following readings were obtained. Find the error of closure on point A.
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