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 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.
The HI of the instrument placed on top of a 50 m high hill is 1.2 m . The top of the water tank located 500 m away was sighted and has an angle of depression of 5 degrees. What is the elevation of the top of water tank? a. Not listed on the given choices b. 7.439 m c. 7.473 m d. 14.944 m e. 4.31 m
The slope distance and zenith angle observed from point X to point Y were 1501.85 ft. and 86°27'15". The instrument and rod target heights were equal. If the elevation of point X is 102.09 ft. above datum, what is the elevation of point Y? (Hint: Don't forget to account for curvature and refraction.)
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.
Question 29 If the back sight reading at point A is greater than the fore sight reading at point B then a. A is higher than B b. height of the instrument is required to know which point is higher C. B is higher than A d. instrument position is required to know which point is higher
2. The following data were obtained by stadia observation; vertical angle, +12 deg 30 min; upper stadia hair reading and lower stadia hair readings, 4.5 and 3.25m, respectively. The rod reading was taken at 3.875m above the stadia point at A. and the height of the instrument above the instrument station B, is 1.620m. If the stadia interval factor is 99.5 and the instrument constant is0.381m, find a) the horizontal distance between the instrument station and the stadia point. b) The inclined distance from the center of the instrument to the rod reading c) The difference in elevation between the two ground point.
A backsight reading of 2.73 m is taken on point A and subsequently a foresight reading of 1.35 m is taken on point B from a level station established midway between the points. The difference in elevation between points A and B is
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.
Stadia observation yielded the following results: vertical angle, +13°20': top stadia hair reading, 4.500 m, and lower stadia hair reading, 3.250 m, respectively. The rod reading was taken at A, which is 3.875 m above the stadia point, and B, which is 1.620 m above the instrument station. The instrument constant is 0.381 m, and the stadia interval factor is 99.5. What will be the horizontal distance between the instrument station and the stadia point? Select the correct response: 118.131 183.111 118.113 181.113
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.
I need to solve all the questions please Q2: To estimate error ratio in a level instrument, the following reading were taken in meters. If you know that elevation of A = 24.60m and distance between A and B is 200m, calculate the following 1. The collimation Error. 2. The deflection angle in Line of sight (8) 3. True elevation of B considering the effects of curvature. True elevation of C considering (Curvature and Refraction). 4. Location level close to A mid-point between A and B BS 2.015 2.44 IS -3.105 FS 1.883 2.32 Rise Fall Staff at A B A с B Remarks 0 meter to 200 m to B 100 m to A 100 m to C 100 m to B

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