The backsight taken from BM1 and TP2 were 1.098 meter and 1.015 meter respectively. Theforesight readings were, 1.754 meter from TP1, and 1.113 meter from BM2. If the height ofinstrument for the second instrument setup is 221.098 meter, the elevation of TP2 is 219.834meter, and the difference in elevation between BM1 and BM2 is -0.803meter, determine thebacksight of TP1. O

Station BS(m) FS(m) HI(m) Elevation/R.L.(m) BM1 1.098 - 221.637 220.539 TP1 x 1.754 221.098…

Answered: The backsight taken from BM1 and TP2…

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 backsight is taken on a benchmark of rod reading of 1.30 meters, vertical angle of 22° 30’, and slope distance distance from instrument of 57.6 m. A foresight is taken on a point A with rod reading of 0.80 m., vertical angle of 8° 15’, and a horizontal distance of 40.50 m from the instrument. If the height of instrument is 1.20 m. having a ground elevation of 537.98 m., determine the elevation BM and point A disregarding the effect of curvature and refraction.
A transit with stadia interval factor of 100.8 was set up at point C on the line between points A and B. The following readings were observed: HAIR READINGS ROD VERTICAL ANGLE UPPER MIDDLE LOWER A +15-25 1.972 1.854 1.732 В -09-07 1.330 1.175 1.010 If the distance from the instrument to the focus is 0.38m, determine the following: a) Horizontal distance between A and B. b) Difference in elevation between A and B.
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
When performing a leveling process for the longitudinal section of a road, the following readings were recorded: The first reading was taken on the leveling number (B.M1), whose Tevel is (60 meters), while the rest of the points were taken on the section points (00+0. 0+50 + 00+ 1... . (While working, lift the device after the fourth, seventh, and tenth reading. Arrange the readings in a table, then complete the table and verify the correctness of the calculations. Draw the segmént and establish a slope line inclined by 0.4% - and its level at the beginning of the project is 60 meters. Find the burial depth in each station. " Reading sequence 1 2 3 4 5 6 7 8 9 10 11 12 13 Reading the ruler 1.35 1.72 1.98 2.05 2.17 2.76 2.98 0.67 1.78 2.48 |2.88 3.10 3.39|
Write down about the modification of the basic Dutch cone penetrometer?
Module 03- Coursework Activity 04 A transit with stadia interval factor of 100.8 was set up at point C on the line between points A and B. The following readings were observed: A B ROD VERTICAL ANGLE +15-25 -09-07 1.972 1.330 UPPER HAIR READINGS MIDDLE 1.854 1.175 1.732 1.010 LOWER If the distance from the instrument to the focus is 0.38m, determine the following: a) Horizontal distance between A and B. b) Difference in elevation between A and B.
Determine vertical deflection at point D.
In the two-peg of a dummy level, the following observation are taken. What is the difference in elevation between A and B? Answer: ____________ If the line of sight is not in adjustment, determine the correct rod reading on B with the instrument still set up at A. Answer: ____________
Please help with b, i & ii The slope distance between two stations A and B measured with EDM when corrected for meteorological conditions and instrument constants, is 113.893 m. The heights of the instrument and reflector are 1.739 m and 1.839 m, respectively, above the ground. To measure the vertical angle a theodolite was set up at A, 1.665 m above the ground and a target at B having height above the ground as 1.632 m. The measured angle above the horizontal was + 4°22′18″. Determine a. The horizontal length of the line AB. b. To what precision the slope angle be measured: i. if the relative precision of the reduced horizontal distance is to be 1/100000. ii. if the reduced horizontal distance is to have a standard error of ± 1.8 mm.
A stadia measurement was undertaken with a theodolite having an internal focusing telescope and stadia interval factor of 98.8. When a backsight was taken on a turning point whose elevation is 205.62 m, the rod interval observed was 1.94 m; and with the horizontal hairs set at 1.50 m on the rod, the vertical angle reading was -13 degree 45’. For a foresight to a control point, the rod intercept was 1.17 m; and with the horizontal hair reading of 1.60 m on the rod, the vertical angle observed was +7 degree 18’. Determine the elevation of the line of sight at the instrument point and the elevation of the point on which the foresight was taken.

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