JNTU
JNTU B.Tech III REMOTE SENSING AND GIS IN MINING Previous Question Paper (May - 2019 - R16)
Note: This question paper contains two parts A and B. Part A is compulsory which carries 25 marks. Part B consists of 5 Units. Answer any one full question from each unit.
PART - A
Answer all questions:
Write a short note on Stefan’s law.
Answer
Stefan-Boltzmann law states that the total energy radiated per unit surface area of a black body per unit time is directly proportional to the fourth power of its absolute temperature. It is expressed as
Explain the term atmospheric windows.
Answer
Atmospheric windows are specific ranges of the electromagnetic spectrum that can pass through the Earth's atmosphere with minimal absorption or scattering by atmospheric gases like water vapor, carbon dioxide, and ozone. These regions are critical for remote sensing as they allow sensors to detect radiation reflected or emitted from the Earth's surface.
List the urban features that can be identified by the texture.
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Define Rayleigh scattering.
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What is V/H ratio?
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List the characteristics of Landsat satellites.
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Define the term Image Registration.
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Write a short note on supervised classification.
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Enumerate the common errors in GIS database.
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What are the disadvantages of raster data models?
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PART - B
Describe the concept of sensors and write their characteristics.
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Differentiate between:
Active sensors and Passive sensors
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Spectrum and Electromagnetic radiation.
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Explain the spectral reflective characteristics of vegetation and water in the visible and infrared regions.
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Discuss Atmospheric interactions with electromagnetic radiation concept in detail.
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What are the different types of data products and explain.
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Discuss Geometric characteristics of scanners.
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Write a note on the following:
Satellite platforms
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Scanners.
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What are the basic elements of visual interpretation techniques? Explain.
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Write an explanatory note on image enhancement techniques in digital image processing.
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Describe the various functions of Data base management system.
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What are the common problems occurred during digitizing maps and also mention the guidelines for digitization.
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