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Previous Year Exam Questions of Remote Sensing and GIS of bput - RSG by Verified Writer

  • Remote Sensing and GIS - RSG
  • 2017
  • PYQ
  • Biju Patnaik University of Technology Rourkela Odisha - BPUT
  • Civil Engineering
  • B.Tech
  • 545 Views
  • 39 Offline Downloads
  • Uploaded 2 years ago
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Registration No: Total Number of Pages : 02 B.Tech. PCI5D001 5th Semester Regular Examination 2017-18 GIS and Remote Sensing BRANCH : CIVIL Time : 3 Hours Max Marks : 100 Q.CODE : B253 Answer Part-A which is compulsory and any four from Part-B. The figures in the right hand margin indicate marks. Q1 (2 x 10) j) Answer the following questions:multiple type or dash fill up type Electromagnetic energy can be modeled by waves or by energy bearing particles called ………… The sensors which depend on external sources of energy, usually the sun are known as …………….. sensors. An ……….. is simply a reference material designed to permit rapid and accurate identification of object or features represented in aerial images. Image ……… and …… are required to correct the distorted or degrades image to create a more faithful representation of the original image. An information system that is designed to work with data referenced by spatial or geographical coordinates is called ……. ………… data for a GIS are mainly tabular data collected by sampling. The transfer of a GIS database from one software package to another can lead to errors usually termed as …………. errors. An individual point, line or area in a GIS database is called an ……. ………. colour composite uses three light sources of three primary colours (RGB), for instance, colour graphics display. A ………. map is a map showing boundaries and ownership of land. Answer the following questions: Short answer type List any two image enhancement operators. What is resolution of a sensor? What are the advantages of remote sensing? What is vector data model? What do you mean by digital image? What are the key components of GIS? What are the limitations of GIS? What is Buffering? What is UTM projection? What is filtering of an image? (2 x 10) a) b) c) d) e) f) g) h) i) j) a) b) c) d) e) f) g) h) i) Q2 Q3 a) b) Q4 a) b) Define remote sensing. Draw a neat sketch of EMR and indicate UV, Visible and IR portion. Differentiate between active and passive remote sensing system. (10) What are the different types of data products which results from remote sensing. Explain fcc. How the interpretation of absolute temperature in thermal imagery influenced by several factors? Compare thermal properties of water and land. (8) (5) (7)

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Q5 Q6 a) b) Q7 a) b) Q8 a) What do you understand by visual image interpretation? What are the elements of image interpretation? How these elements help us to interpret remote sensing imagery? (15) Why should we use GIS instead of conventional CADD? Explain with example. What are raster and vector? Write the basic differences between raster and vector. What do you mean by digital terrain modeling? Explain different approaches to digital terrain data modeling. What things can be represented by point, line and polygon? Explain topological data model to represent area. (8) b) What is image classification? What are the basic differences between one pass clustering and ISODATA clustering? What is a map projection? Explain azimuthal projection. a) b) c) Write short notes of the followings : Multi image manipulation GIS Architecture Data updating and storage Q9 (7) (10) (5) (10) (5) (5) (5) (5)

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