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Seat No.: Enrolment
GUJARAT TECHNOLOGICAL UNIVERSITY
PDDC- SEMESTER-II EXAMINATION SUMMER 2017
Subject Code: X20601 Date:30/05/2017
Subject Name: ADVANCED SURVEYING
Time: 10:30 AM to 01:00 PM Total Marks: 70
Instructions:
1. Attempt any five questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
Q.1

Describe various systems of tacheometric survey. Differentiate between Fixed hair method and movable hair method
07

Derive the distance and elevation formulae for inclined sight with staff held vertical
07
Q.2

Determine the gradient from a point A to B from the following observations made with a tacheometer fitted with an analectic lens. The constant of the instrument was 100 and the staff was held vertically:
Inst. Stn.
Staff point
Bearing
Vertical angle
Staff readings
P
A
134

0.755 1.040 1. 325
B
224

1.235 1.490 1.750
07

Explain with sketch principle of substance method
07
Q.3

Describe elements of simple curve.
07

Explain the setting out of simple curve by offsets from long chord.
07
Q.4

Explain relief displacement. Derive relief displacement equation on vertical photograph.
07

Two points A and B having elevations of 500 m and 300 m respectively above datum appear on the vertical photograph having focal length of 20 cm and flying altitude of 2300 m above datum. Their corrected coordinates are as follows. Determine the length of ground line AB.
Point
Photographic X co-or.
Photographic Y co-or.
a
2.51
1.31
b
-1.72
+3.55
07
Q.5

Explain about uses and functions of total station.
07

Explain sidereal time and standard time in brief.
07
Q.6

Explain following methods of locating soundings: By cross rope, By range and one angle from the boat
07

Explain mechanical method of the three point problem for plotting of soundings
07
Q.7

Explain segments and satellite constellation of Global positioning system.
07

Define GIS. Write names of popular GIS softwares/programs. Explain components of GIS.
07