JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD
JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD B.Tech III REMOTE SENSING AND GIS Previous Question Paper (August/September - 2024 - R16)
Note: i) Question paper consists of Part A, Part B.
ii) Part A is compulsory, which carries 25 marks. In Part A, Answer all questions.
iii) In Part B, Answer any one question from each unit. Each question carries 10 marks and may have a, b as sub questions.
Part A
What are the types of aerial photographs? And explain any one in detail.
Answer
Aerial photographs are primarily classified into vertical and oblique photographs. A vertical photograph is taken with the camera axis pointed as nearly as possible to the nadir (directly downward). These are primarily used for mapping and photogrammetric measurements because they provide a relatively uniform scale across the image and minimize geometric distortion.
Write short note on Differential parallax.
Answer
Differential parallax refers to the difference in the parallax values of two points at different elevations on a stereoscopic pair of aerial photographs. It is the fundamental principle used to determine the height of objects from aerial imagery. By measuring the parallax difference between the top and base of an object, the height can be calculated using the flying height and air base.
What is the importance of Resolution?
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Draw Electromagnetic Spectrum.
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What is a Projection?
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Explain the components of GIS.
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What are Common Topological Errors?
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How to define Coverage in Vector data format?
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What is a Metadata?
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Explain about IMGRID model.
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Part B
Present a detailed classification of sensing devices.
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Explain the Geometric properties of aerial photographs.
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Explain the Parallax Measurement using Fiducial Line.
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Explain the measurement of Height based on Relief displacement.
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Explain the components of remote sensing with a neat sketch.
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Explain False Colour Composite significance in the field of RS.
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Explain the advantages of Remote Sensing.
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Discuss the essential features of visual interpretation techniques.
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Explain the methodology of linking spatial data with attribute data.
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Give the classification of map projections with examples.
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Explain the role and importance of data structure in GIS.
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What are the GIS layers developed for watershed characterization? Explain.
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Give notes on Geometric representation of Spatial features in GIS.
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List out various spatial rules that define a Topology.
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Explain about TIGER and Topological models in Vector GIS.
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Explain the process of DTM Generation.
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What are the advantages and disadvantages of the Raster Data Models?
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What are the three raster GIS models? Give advantages of each.
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How you will identify and rectify the various types of errors during digitization?
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Explain Various Methods used for digitization to create spatial data.
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