GTU B.Tech 2020 Winter Question Papers || Gujarat Technological University
Subject Name: Remote Sensing and GIS
Time: 10:30 AM TO 12:30 PM
Total Marks: 56
Subject Code: 3150617
GUJARAT TECHNOLOGICAL UNIVERSITY
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BE- SEMESTER-V (NEW) EXAMINATION - WINTER 2020Subject Name: Remote Sensing and GIS
Time: 10:30 AM TO 12:30 PM
Total Marks: 56
Instructions:
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- Attempt any FOUR questions out of EIGHT questions.
- Make suitable assumptions wherever necessary.
- Figures to the right indicate full marks.
| Q.No. | Question | Marks |
|---|---|---|
| Q.1 (a) | Define Remote Sensing. Explain its advantages and limitations. | 03 |
| (b) | What are raster and vector? Write the basic differences between raster and vector. | 04 |
| (c) | What is resolution and pixel in image? Explain in detail spectral resolution and temporal resolution | 07 |
| Q.2 (a) | Enlist various data formats of digital image. | 03 |
| (b) | Explain the principle of Remote Sensing. | 04 |
| (c) | Explain the systems of image classification in remote sensing. | 07 |
| Q.3 (a) | Write a note on imaging sensors for digital image | 03 |
| (b) | Write a note on active and passive remote sensing | 04 |
| (c) | Explain the interaction Electromagnetic energy with the atmosphere in detail. | 07 |
| Q.4 (a) | Explain microwave remote sensing. | 03 |
| (b) | Explain in brief different components of GIS. | 04 |
| (c) | Describe briefly properties as well as classification of map projections | 07 |
| Q.5 (a) | Define metadata, attribute data & spatial data | 03 |
| (b) | Give the salient features of cadastral, thematic and topographic maps. | 04 |
| (c) | Explain ‘vector data model’ and ‘raster data model’ in GIS | 07 |
| Q.6 (a) | Describe the Fundamentals of GIS Analysis functions | 03 |
| (b) | Explain the procedure of georeferencing in QGIS software | 04 |
| (c) | Write salient features of remote sensing tool ENVI or ERDAS. | 07 |
| Q.7 (a) | Discuss the concept of Wi-Fi | 03 |
| (b) | Discuss the features of Mapwindow GIS and Arc GIS. | 04 |
| (c) | Explain the concept of quadrant counts and nearest neighbour analysis with respect to GIS data processing | 07 |
| Q.8 (a) | Write a note on reference co-ordinate systems | 03 |
| (b) | Explain applications of digital terrain model | 04 |
| (c) | Explain the role of GIS and RS in assessing the impact of floods. | 07 |
Date: 22/01/2021
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