Previous Year Question Paper (2026)
2026
Geography — Honours
Paper: DSCC-15 (Remote Sensing, GIS, GNSS)
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Full Marks: 75
Category - A
Answer any ten questions (each within 50 words).
2 × 10
1. What is active remote sensing?
2. Define atmospheric window.
3. What is nadir?
4. What is meant by radiometric resolution?
5. What is the full form of LISS-III?
6. What is standard FCC?
7. What are the spatial resolution of Cartosat 3, PAN and multispectral sensors?
8. Where are the headquarters of ISRO and NRSC located?
9. What is attribute table in GIS?
10. What is the utility of query in GIS?
11. What is meant by overlay in GIS?
12. What is a waypoint?
13. Name two global navigational satellite systems that can be used as alternatives to GPS.
14. Define PRN code.
Category - B
Answer any five questions (each within 125 words).
5 × 5
15. Enlist the different advantages and disadvantages of remote sensing.
16. Differentiate between geosynchronous and sun-synchronous orbits.
17. Differentiate between temporal and spectral resolution.
18. What are the steps for obtaining OLI data from USGS?
19. Mention the differences between raster and vector data.
20. Write a note on the applications of buffers in GIS.
21. What are the sources of errors in GNSS survey?
Category - C
Answer any two questions (each within 500 words).
15 × 2
22. Classify the different types of platforms used in remote sensing with examples.
23. Discuss the different elements of image interpretation.
24. 'Use of GIS leads to better decision making in governance.'– Elaborate the statement.
25. Discuss the different segments of GNSS.
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