Reg. No.
B.E. B.Tech. DEGREE EXAMINATION, MAY 2017 Third Semester Civil Engineering 01UCE306 SURVEYING I (Regulation 2013) Duration: Three hours Maximum: 100 Marks Answer ALL Questions. PART A (10 x 2 20 Marks)
1. What are arrows?
2. Define ranging.
3. What is the difference between triangulation and traversing?
4. Discuss the three point method of resection.
5. List out the error in the leveling.
6. What is check leveling?
7. What is Gale's table?
8. Enumerate the instruments used to find the inclination of the contour gradient.
9. On what basis, a vertical curve is designed?
10. What are the purposes of Tacheometric surveying?
Question Paper Code: 31136
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PART B x 16 80 Marks)
11. Explain the obstacles in chaining with neat sketches. Or P and Q are two points 517 m apart on the same bank of a river. The bearings of a tree on the other bank observed from P and Q are N 33°40' E and N 43°20' W respectively. Find the width of river if the bearing of PQ is N 78 °E.
12. The following bearings observed in traversing with a compass in a place where local attraction was suspected: At what stations affected by local attraction? Find the corrected bearings of the lines.
Line
Fore Bearing
Back Bearing
AB
80° 30´
260° 30´
BC
351° 15´
173° 0´
CD
32° 15´
208° 0´
DE
106° 15´
287° 45´
EF
99° 00´
280° 0´´
FG
209° 30´
29° 30´
Or List the various types of errors in plane table surveying and also list out the precautionary measures to overcome them.
13. The following consecutive readings were taken with a dumpy level and a 4 m leveling staff on a continuously sloping ground at 30 m intervals: 0.680,1.455,1.855,2.330,2.885,3.380,1.055,1.860,2.265,3.540,0.835,0.945,1.530 and 2.250. The RL of the starting point was 100 m. Find the RL by height of collimation method. Calculate the gradient of the line joining the first and last point. Or Explain, in details, the different types of leveling.
14. Describe with the help of sketches about the characteristics of contour surveying. Or
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The following perpendicular offsets were taken at 10m intervals from a survey line to an irregular boundary line. 3.25, 5.60, 4.20, 6.65, 8.75, 6.20, 3.25, 4.20, 5.65. Calculate the area using average ordinate rule, trapezoidal rule and Simpson's rule.
15. In an open traverse ABCDE, it is required to find length of AE and to fix the midpoint of AE. Following is the record of readings.
Determine the length and bearing of AE Determine the length and bearing of line joining midpoint of AE and the station C. Or Explain in detail about temporary adjustment of Theodolite.
Line
Length(m)
Bearing
AB
130.5
N 20°30' E
BC
215.0
N 60°15' E
CD
155.5
N 30°30' E
DE
120.0
N 30°30' E
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