GTU BE/B.Tech 2019 Winter Question Papers || Gujarat Technological University
Subject Code: 2130601 Date: 28/11/2019
Subject Name: Surveying
Time: 02:30 PM TO 05:00 PM Total Marks: 70
Seat No.: Enrolment No.
GUJARAT TECHNOLOGICAL UNIVERSITY
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BE - SEMESTER- III (New) EXAMINATION — WINTER 2019Subject Code: 2130601 Date: 28/11/2019
Subject Name: Surveying
Time: 02:30 PM TO 05:00 PM Total Marks: 70
Instructions:
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- Attempt all questions.
- Make suitable assumptions wherever necessary.
- Figures to the right indicate full marks.
| MARKS | |
|---|---|
| Q.1 (a) Define the following terms: (i) Line of collimation, (ii) Departure, (iii) Latitude | 03 |
| (b) Draw a neat sketch of Transit vernier Theodolite showing its components. | 04 |
| (c) What is use of planimeter? When will you apply zero circle? How do you find the zero circle? | 07 |
| Q.2 (a) Define: Area Convert: (i) 1 Hectare = ___ m². (ii) 1 Acres= ___ ft². | 03 |
| (b) Discuss the method of achieving horizontal and vertical control in setting out works. | 04 |
| (c) The following offsets were taken from a chain line to an irregular boundary line at an interval of 5m. --- Content provided by FirstRanker.com --- 1.20, 2.40, 3.60, 4.70, 3.10, 0.50, 1.00 m.Compute the area by Simpson’s rule and Trapezoidal rule. | 07 |
| OR | |
| (c) Find the capacity of a reservoir from the contour data given in below table. The scale of plan is 1:4000. Compute with both the methods. | 07 |
| Contour | Area (cm²) | Contour | Area (cm²) |
|---|---|---|---|
| 260 | 400 | 248 | 205 |
| 258 | 367.5 | 246 | 177.5 |
| 256 | 327.5 | 244 | 147.5 |
| 254 | 310 | 242 | 115 |
| 252 | 277.5 | 240 | 0 |
| 250 | 243.75 |
| Q.3 (a) Define: (i) Deflection angle, (ii) Vertex, (iii) Point of tangency | 03 |
| (b) Enlist types of curves. Describe the method of setting out a circular curve by any method. | 04 |
| (c) How will you determine RL of an object when instrument axis of one station nearer to the object is at higher level than the other instrument station? | 07 |
| OR | |
| Q.3 (a) Give following designation of a curve: (i) Tangent length, (ii) Length of the long chord, (iii) Length of curve. | 03 |
| (b) What is the field procedure of the long chord method in setting a curve. | 04 |
| (c) Apply method of offset for a railway alignment of a circular nature having radius of 800m and a deflection angle of 36°. Tabulate the ordinates from the long chord at 20m interval. | 07 |
| Q.4 (a) Briefly give reasons of errors in plan table survey. | 03 |
| (b) Derive the following relationship: d = 1718.9 x (C/R) minutes. | 04 |
| (c) An instrument was set up at a point 250m away from a high mast tower. Angle of elevation to the top of tower was 30°, and to the bottom was 3°. Calculate height of the Tower. | 07 |
| OR | |
| Q.4 (a) Define Plane table surveying with its advantages and disadvantages. | 03 |
| (b) Explain the three-point problem and different methods of solving it. | 04 |
| (c) How will you perform direct leveling on steep ground? | 07 |
| Q.5 (a) What is closing error? How will you find it? | 03 |
| (b) What do you mean by Soundings in hydrographic survey? Where it is required? | 04 |
| (c) Enlist methods of theodolite traversing and explain any one of them in detail. | 07 |
| OR | |
| Q.5 (a) What is least count? How will you find least count of an instrument? | 03 |
| (b) Why and how Gale’s Traverse table is widely used in traverse computation? | 04 |
| (c) The following are the lengths and bearings of the lines of a closed traverse. Find closing error and its direction. | 07 |
| Line | Length (m) | Bearing |
|---|---|---|
| AB | 235.10 | N21°40'W |
| BC | 317.40 | N52°22'E |
| CD | 215.00 | S13°00'E |
| DA | 281.60 | S79°40'W |
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