Advanced Surveying — Summer 2018

What do you mean by geodetic surveying? How does it differ from plane surveying?

Derive the expressions for horizontal and vertical distances by the stadia method when both the angles measured are those of elevation.

Discuss the field procedure elaborately for carrying out tacheometry survey in hilly area.

Explain the tangential method of tacheometry. Derive the equation for horizontal and vertical distance when both the angles of measurement are those of depression.

Define triangulation. Discuss the criteria for selecting the base line.

What are the sources of error in tacheometry?

Atacheometer was set up at a station Cand the following readings were obtained on a staff vertically held. Calculate the horizontal distance CD and RL of D, when the constants are 100 and 0.15. Inst. stn Staff stn Vertical angle Hair readings Remark C BM -5° 20’ 1.500, 1.800, 2.450 RL of C D + 8° 12’ 0.750, 1.500, 2.250 BM=750.50 m

What is azimuth? Explain different methods for determining azimuth of a survey line.

What is overlap of photographs? Why it is required?

Explain stereoscopic vision and stereoscopic fusion.

List out various types of EDM instruments and discuss elaborately about total station.

What is spherical triangle? Also discuss the properties of a spherical triangle.

Write short note on satellite station.

What is the basic principle of remote sensing? Discuss active and passive remote sensing with example.

Explain the working principle of GPS.

Explain the major objectives of GIS. Also discuss the key components of GIS.

Discuss various applications of GIS and Remote sensing in Civil Engineering.