GATE Data Analysis, Remote Sensing and Geo-informatics: Basic concepts in satellite remote sensing, satellites, sensors, and coverage – Previous Year Questions

4 GATE previous year questions on Basic concepts in satellite remote sensing, satellites, sensors, and coverage (Data Analysis, Remote Sensing and Geo-informatics, Architecture and Planning) with answers and explanations, from every paper.

1. GATE 2021 AR Q13 (1 mark, MTA) – Which listed Indian satellite sensor can be used for very-high-resolution urban mapping?
2. GATE 2023 AR — Planning Q61 (2 marks, Multiple choice) – Match satellite applications P cyclone monitoring, Q communication, R high-resolution imaging, S navigation with 1 IRNSS-1I, 2 HySIS, 3 GSAT-30, 4…
3. GATE 2025 AR — Planning Q51 (1 mark, Multiple choice) – Which spectral bands calculate NDVI?
4. GATE 2026 AR — Planning Q61 (2 marks, Multiple select) – Which are passive remote-sensing techniques?