b. A tacheometer was set up at B.M and the following observations were made with a leveling staff held vertically at P and Q. Ins: Station Staff Station Vertical Angle | Hair Readings Bearings Remarks В.М P +10° 00' 1.050, 1.103, 1.156 | 40° R.L of B.M = Q -15° 00' 0.952, 1.055, 1.158 | 140° 1958.500 ft The constant of instrument (f/i) = 100, Height of instrument = 5.15 ft Compute: a) The horizontal distance between P and Q b) Reduced Levels of P and Q c) Grade between P and Q

b. A tacheometer was set up at B.M and the following observations were made with a leveling staff held vertically at P and Q. Ins: Station Staff Station Vertical Angle | Hair Readings Bearings Remarks В.М P +10° 00' 1.050, 1.103, 1.156 | 40° R.L of B.M = Q -15° 00' 0.952, 1.055, 1.158 | 140° 1958.500 ft The constant of instrument (f/i) = 100, Height of instrument = 5.15 ft Compute: a) The horizontal distance between P and Q b) Reduced Levels of P and Q c) Grade between P and Q

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 tacheometer was set up at B.M and the following observations were made with a leveling staff held vertically at P and Q. Ins: Station Staff Station Vertical Angle Hair Readings Bearings Remarks B.M P +10° 00’ 1.050, 1.103, 1.156 40° R.L of B.M =1958.500 ft Q -15° 00’ 0.952, 1.055, 1.158 140° The constant of instrument (f/i) = 100, Height of instrument = 5.15 ft Compute: The horizontal distance between P and Q Reduced Levels of P and Q Grade between P and Q
The following data were obtained by a stadia measurement; vertical angle is 30deg23mins, and observed stadia intercept is 2.20m. The stadia interval factor at the measurement used 95.50m and C is 0.30m, if the height of the instrument is 1.62m, and the rod reading is taken 1.95m. Determine the D, V, S and the Difference in elevation. (D= distance, V= Vertical Distance, S= Sight distance) Topic: Tacheometric Surveying Pls answer in COMPLETE solution. DIAGRAM/ILLUSTRATION of the solution is a must, for better understanding. 3 dec places all answers. THANK YOU.
A differential leveling circuit began on BM Hydrant (orthometric height 5869.31 ft) and closed on BM Rock (orthometric height 5880.03 ft). The plus sight and minus sight distances were kept approximately equal. Readings (in feet) given in the order taken are 2.68 (+S) on BM Hydrant, 5.59 (−S) and 10.83 (+S) on TP1, 6.46 (−S) and 10.61 (+S) on BM 1, 8.91 (−S) and 7.57 (+S) on BM 2, 5.14 (−S) and 9.01 (+S) on TP2, and 3.83 (−S) on BM Rock. Prepare, check, and adjust the notes.
A differential leveling circuit began on BM Hydrant (orthometric height 5869.31 ftft) and closed on BM Rock (orthometric height 5880.03 ftft). The plus sight and minus sight distances were kept approximately equal. Readings (in feet) given in the order taken are 5.48 (+S) on BM Hydrant, 5.59 (−S) and 10.83 (+S) on TP1, 9.26 (−S) and 13.41 (+S) on BM 1, 8.91 (−S) and 7.57 (+S) on BM 2, 5.14 (−S) and 9.01 (+S) on TP2, and 6.63 (−S) on BM Rock. Prepare, check, and adjust the notes. Determine the Plus and Minus adjustments. Express your answers in feet to two decimal places separated by a comma. Determine the page check. Express your answer in feet to two decimal places. Determine the misclosure and the correction. Express your answers in feet to two decimal places separated by a comma.
A tacheometer was set up at station P and observations were made to two stations Q and R. The vertical angles to Q and R were 5°30’ and 1°08’ The cross-hair readings at Q were 2.105, 2.47 and 2.835 and those at R were 2.215, 2.56 and 2.905. The staff were held vertical in both cases. The instrument constants were 100 and 0.3. The reading from P to a BM of RL 285.35m was 2.255. The horizontal angle QPR measured was 58°30’. Find the distance QR, the gradient from Q to R and the RLs of Q and R.
A tacheometer is setup at A and the readings on the staff at B are 1.77m, 2.12m, 2.34m and the inclination of line of sight is + 1° 9ꞌ48". Calculate the horizontal distance between A and B. Take k = 100, c = 0.3?
To adjust a dumpy level by peg method of adjustment, two points A and B wereset up. With the instrument at point A, the rod reading at A was 1.623m and theforesight at B was 2.875m. The level is transferred at B and the backsight at B was1.622m while the rod reading at A was 0.362m.a. Find the true elevation between A and B.b. What is the error in the line of sight?c. Determine the correct reading at A that will give the level line of sightwith the instrument still at point B.
Reciprocal leveling gives the following readings in meters from a setup near A: on A, 1.365; on B, 4.928, 4.924, and 4.926. At the setup near B: on B, 4.251; on A,1.687, 1.688, and 1.688. The elevation of A is 564.872 m. Determine the disclosure and elevation of B.
The following staff reading were taken in succession with a level. The instrument was shifted after 2nd , 4th, 7th and 9th reading. By the Rise and Fall Method and Plane of Collimation Method, Calculate the R.L of all the points. R.L of Bench Mark 264 meters. Readings are: 0.422, 0.684, 1.285, 0.506, 1.793, 4.462, 2.416, 3.120, 1.517, 1.234, and 1.232. Apply checks to verify.
The following data were obtained by stadia observation: vertical angle, +12deg 30min; upper stadia hair reading and lower stadia hair readings, 4.5m and 3.25m, respectively. The rod reading was taken at 3.875m above the stadia point at A and the height of instrument above the instrument station at B, is 1.62m. If the stadia interval factor is 99.5 and the instrument constant is 0.381m, what is the horizontal distance between the instrument station and the stadia point?
Situation 1: A two-peg test is used to check whether the ine of sight of the level is in perfect adjustment and the following rod readings are taken, with instrument set up near A, backsight on A is 1.623 m. and foresight reading on B is 2.875 m. With the instrument set up near B, backsight on B is 1.622 and a foresight on A is 0.362 m. a. Find the difference in elevation. b. What should be the correct rod reading on A to give a level line of sight with instrument still set up near B? c. What should be the correct rod reading on B to give a level line of sight with instrument still set up near A?
The following data were obtained by stadia observation: vertical angle, +12deg 30 min; upper stadia hair reading and lower stadia hair readings, 4.500 and 3.250m, respectively. The rod reading was taken at 3.875m above the stadia point at A and the height of instrument above the instrument station, B, is 1.620m. If the stadia interval factor is 99.5 and the instrument constant is 0.381m, compute the horizontal distance between theinstrument stationand the stadia point. Compute also the difference in elevation between the two ground points.