Q.2 Reciprocal leveling was conducted across a wide river to determine the difference in level of points A and B, A situated on one bank of the river and B situated on the other .The following results on the staff held vertically at A and B from level station 1 and 2 , respectively were obtain . The level station 1 was near to A and station 2 was near to B. Instrument at Staff reading on A Staff reading on B 1 1.471 1.725 2 1.131 1.371 (1) If the reduce level of B is 91.18 m above the datum, what is the reduced level of A? (2) Assuming that the atmospheric conditions remain unchanged during the two sets of the observation, calculate (i) the combined curvature and refraction correction if the distance AB is 315 m, (ii) the collimation error?

Q.2 Reciprocal leveling was conducted across a wide river to determine the difference in level of points A and B, A situated on one bank of the river and B situated on the other .The following results on the staff held vertically at A and B from level station 1 and 2 , respectively were obtain . The level station 1 was near to A and station 2 was near to B. Instrument at Staff reading on A Staff reading on B 1 1.471 1.725 2 1.131 1.371 (1) If the reduce level of B is 91.18 m above the datum, what is the reduced level of A? (2) Assuming that the atmospheric conditions remain unchanged during the two sets of the observation, calculate (i) the combined curvature and refraction correction if the distance AB is 315 m, (ii) the collimation error?

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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Which of the following may cause errors in leveling measurement? (Multiple choice) (Multiple choice) 1 □ A. The level tripod sinks O B. Reading Error □ C. The instrument is not erected at approximately the same distance from front to back □D. Improper implementation of the centering of the level □ E. Subsidence occurred at the level where the level was erected □ F. Vertical dial error of the level
Please perform the analysis to find the elev of BM 2. Also find the error, indicate the order and class, and adjust the elevations
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SURVEYING Given the following differential level notes: STA BS FS BM1 1.73 - TP1 2.5 3.8 TP2 2.75 1.7 BM2 3.15 3.32 TP3 2.45 3.22 TP4 3.9 2.5 TP5 2.78 3.02 BM3 - 1.77 Base on the differential leveling of note in the previous problem, if the elevation of TP3 = 267.28 m, determine the elevation of BM1
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Prepare a set of level notes for the survey. Perform the arithmetic check.
Include drawing/diagram
A 3 meter long subtense bar was first set up at A and subsequently at B, and the subtended angle to the bar, as read from a theodolite position somewhere along the middle of the line AB, were recorded as 3deg 5’00” and 2deg 6’00". Determine the length of line AB. a. 125.69 m b. 137.58 m c. 256.12 m d. 165.69 m
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العنوان не ➤ The following observations were recorded when carrying stadia level between two temporary bench marks. ➤ If the elevation of TBM1 is 750.0 m, compute the elevation of TBM2. Back sight Fore sight Stat. interval Rod read. v.angle interval Rod v.angle read TMB1 3.14 8.6 -0° 25' TP1 5.02 4.5 -3 15 5.02 6.3 +1 52 TP2 4.88 10.0 -1 02 2.74 2.2 +6 20 TP3 6.08 8.0 +0 36 8.06 5.0 +6 13 TP4 1.96 5.5 -5 52 4.81 8.5 -4.00 5.92 12.2 -1 13 TBM2 ۱/۱ S で T =T [く] M
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