Elementary Surveying: An Introduction To Geomatics (15th Edition)
15th Edition
ISBN: 9780134604657
Author: Charles D. Ghilani
Publisher: PEARSON
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Textbook Question
Chapter 5, Problem 5.11P
What error results on a 200-ft sight with a level if the rod reading is 6.307 ft but the top of the 7-ft rod is 0.2 ft out of plumb?
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Part A
What error results on a 200-ft sight with a level if the rod reading is 11.307 ft but the top of the 12-ft rod is 0.20 ft out of plumb?
Express your answer in feet to three significant figures.
IVE ΑΣΦ
error =
vec
?
ft
What error results on a 30-m sight with a level if the rod reading is 1.505 m but the top of the 4 m rod is 0.3 m out of plumb?
The line of sight of a wye level was tested by setting upexactly midway between two points A and B. The rodreading on A was 1.520m and at B was 1.395. The instrument was next set up at B and rod readings at A andB are 1.683m and 1.490m respectively.
What is the true difference in elevation between A and B?
Chapter 5 Solutions
Elementary Surveying: An Introduction To Geomatics (15th Edition)
Ch. 5 - Prob. 5.1PCh. 5 - Prob. 5.2PCh. 5 - Prob. 5.3PCh. 5 - Prob. 5.4PCh. 5 - Prob. 5.5PCh. 5 - Prob. 5.6PCh. 5 - Prob. 5.7PCh. 5 - Prob. 5.8PCh. 5 - Prob. 5.9PCh. 5 - Prob. 5.10P
Ch. 5 - What error results on a 200-ft sight with a level...Ch. 5 - Prob. 5.12PCh. 5 - Prob. 5.13PCh. 5 - Prob. 5.14PCh. 5 - Prob. 5.15PCh. 5 - Prob. 5.16PCh. 5 - Prob. 5.17PCh. 5 - Prob. 5.18PCh. 5 - Prob. 5.19PCh. 5 - Prob. 5.20PCh. 5 - Prob. 5.21PCh. 5 - Prob. 5.22PCh. 5 - Prob. 5.23PCh. 5 - Prob. 5.24PCh. 5 - Prob. 5.25PCh. 5 - Prob. 5.26PCh. 5 - Prob. 5.27PCh. 5 - Prob. 5.28PCh. 5 - Prob. 5.29PCh. 5 - Prob. 5.30PCh. 5 - Prob. 5.31PCh. 5 - Prob. 5.32PCh. 5 - Prob. 5.33PCh. 5 - Prob. 5.34PCh. 5 - Prob. 5.35PCh. 5 - Prob. 5.36PCh. 5 - Prob. 5.37P
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- What error results on a 20-m sight with a level if the rod reading is 1.7060 m but the top of the 4-m rod is 0.3 m out of plumb? Express your answer to two significant figures and include appropriate units. error = μÀ Value Units ?arrow_forwardThe backsight to a BM is 3.125 m and the FS from the same instrument set up is 3.625 m. If the distance from the dumpy level to BM is 3850 m. and from the dumpy level to the TP is 4714.05 m., compute the difference in elevation between the BM and TP. Show your solutions with Illustrationsarrow_forwardFind the equal height of towers at triangulation stations A and C so that line AC will clear theelevated ground between A and C by 6m. with the instrument set at point B, the observedvertical angle to ground station A is 0 0 55’ and the vertical angle to ground station C is 0 0 48’.Elevation of A is 237m. Distance AB is 10km and distance of BC is 8.7km. Yhe instrument set-upat B is 2.7m above the ground. Use hcr= 0.067k ^2arrow_forward
- A vertical angle of 14deg 30' is read to a target of 1.75m above point M. The measured inclined distance is 64.41m and the elevation of point K is 320m above sea level. If the height of the instrument at K is 1.27m, compute the elevation of M.arrow_forward2-The horizontal angle reading at point A was 317°38'15" then the instrument turned to point B the reading changed to 46°26'20", find the horizontal angle AOB.arrow_forwardFrom the top of a cliff (BM) to point A, a rod reading was recorded to be 1.625m. At a point 185.45m away from the foot of the cliff (BM), a vertical angle of 38°45' was read from an Engineer's transit. A backsight of 1.725m was taken at a Bench Mark whose elevation is 50.00m. above mean sea level. What is the vertical distance at point A? What is the Height of the Instrument? Elevation of point A below stadia rod?arrow_forward
- Part A What error results on a 200-ft sight with a level if the rod reading is 11.307 ft but the top of the 12-ft rod is 0.20 ft out of plumb? Express your answer in feet to three significant figures. 15. ΑΣΦΑ error = Submit Request Answer vec www ? ftarrow_forward6. If a plus sight of 2.731 m is taken on BM A, elevation 386.702 m, and a minus sight of 1.353 m is read on point X, calculate the HIl and the elevation of point X.arrow_forwardA tall tower was photographed from an elevation of foom above the datum. The radial distance of the top & bottom of the tower from principal points in the photograph are 112-5 mm & 82.4mm. If bottom of towes is at an elevation 250m above the dation then beight of the tower would bearrow_forward
- A differential survey was conducted from BM4 to BM5 covering a distance of 8 km. BS and FS distance every set-up average 200m. The designated computer has calculated that the average backsight reading is 2.600 meters. However, it was noted that every time this reading had been taken, the rod is inclined sideways from the vertical by 6°. Determine the correct elevation of BM5 if its recorded elevation is 326.130 meters.arrow_forward5 A line of levels has been run from a bench mark of elevation 24.56 m and ends at another mark of elevation 24.60 m. The sum of the backsights is 18.36 m and that of the foresights is 18.39 m. The closing error is (a) 0.03 m (b) 0.04 m (d) 0.08 m (c) 0.07 marrow_forwardIf a plus sight of 1.097m is taken on BM A, elevation 305.348m, and a minus sight of 0.832m is read on point X, calculate the HI and the elevation of point X.arrow_forward
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