GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER- IV EXAMINATION — SUMMER 2020
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Subject Code: 2140601 Date:27/10/2020Subject Name: ADVANCED SURVEYING
Time: 10:30 AM TO 01:00 PM Total Marks: 70
Instructions:
- Attempt all questions.
- Make suitable assumptions wherever necessary.
- Figures to the right indicate full marks.
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MARKS
Q.1 (a) Describe uses of Triangulation 03
(b) Derive the equation for numbers of photographs required to cover area 04
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(c) Determine gradient form point P to Q from the observation table given below . The observations are taken from station O and Staff held vertical 07| Inst station | Staff station | Bearing | Vertical Angle | Staff reading |
|---|---|---|---|---|
| O | P | 120° | +9°30’ | 1.25 1.855 2.350 |
| O | Q | 260° | +4°00’ | 0.995 1.770 2.680 |
Q.2 (a) Give classification of sensors 03
(b) Explain Types of error 04
(c) Adjust the following angles closing the horizon 07
A=82°39'45" Weight 1
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B=120°25'40" Weight 4C=68°14'30" Weight 3
D=88°11'00" Weight 2
OR
(c) Determine the scale of photograph for terrain laying at elevation of 110 m . If vertical photograph was taken at altitude of 1143 m . Take focal length of camera 20 cm . If the ground elevation is considered 50 m what will be the scale for that ? 07
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Q.3 (a) Give definitions of (i) Photo nadir point (ii) Swing 03
(b) Describe indivisibility of triangulation stations 04
(c) Explain components of remote sensing 07
OR
Q.3 (a) Explain crab and drift 03
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(b) Describe terms (i) Declination circle (ii) Prime vertical 04(c) Explain principle of least square 07
Q.4 (a) Enlist remote sensing platforms. 03
(b) Give application og GIS in Civil Engineering 04
(c) Describe Global positioning system 07
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OR
Q.4 (a) Enlist different signals and explain any one 03
(b) Describe spatial Information system and Non spatial Information system 04
(c) Describe key components of GIS 07
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Q.5 (b) Describe data structure 04
(c) Derive equation for D and V when line of sight is inclined and staff held vertical 07
OR
Q.5 (a) Give difference of Fixed hair method and movable hair method of tacheometry 03
(b) Describe Image Interpretation techniques 04
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(c) Derive equation for scale of photograph 07--- Content provided by FirstRanker.com ---
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