Jawaharlal Nehru Technological University Hyderabad
Jawaharlal Nehru Technological University Hyderabad B.Tech III Year REMOTE SENSING AND GIS Previous Question Paper (March - 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
Define Photo Scale and Map scale.
Answer
Photo scale is the ratio of a distance on an aerial photograph to the corresponding distance on the ground. Map scale is the ratio of a distance on a map to the corresponding distance on the ground, typically represented as a representative fraction (e.g., 1:50,000).
What are fiducial Marks?
Answer
Fiducial marks are small, precise reference marks located at the corners or sides of an aerial camera frame. They are exposed onto the film during photography to define the geometric center of the photograph, known as the principal point, and are essential for correcting lens distortion and performing photogrammetric measurements.
What is false color Composite? Explain.
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What are the advantages and limitations of remote sensing?
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Explain the Use of Spatial Data.
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Explain the significance of Attribute data in GIS.
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What is topology? What is the importance of it?
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What is Spaghetti Data Model?
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What is the importance discrete data?
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What is Raster and Vector Data?
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Part B
Explain the measurement of Height based on Relief Displacement.
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Explain parallax measurement over vertical photograph.
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How you will calculate scale of a vertical photograph?
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Derive the equation for finding object height and ground coordinate location from parallax measurement.
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Elaborate remote sensing processes along with a flow chart.
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Explain the significance of Electro-Magnetic bands in Remote Sensing.
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What are the radiation laws? Explain the importance of each.
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List out important satellites and their sensors. Comment on their applications.
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What are the limitation of GIS?
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What are the different methods of inputting data into GIS?
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Write a detailed note on digital terrain modelling.
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Compare spatial data and Non Spatial data.
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Explain block encoding and Quad tree data Model.
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Explain the Representation of Simple features and Coverage and its Data Structure.
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Describe topology with sketches, types of topology established based on entities.
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List out Various topology rules used in GIS data processing.
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Differentiate between manual and automatic digitization.
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Explain the Elements of the Raster Data Mode.
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Explain the Data input and Metadata, Conversion of Existing data.
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Discuss the methods used for encoding raster data from scratch.
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