GATE Infrastructure, Services and Utilities: Processing and treatment of solid wastes – Previous Year Questions

6 GATE previous year questions on Processing and treatment of solid wastes (Infrastructure, Services and Utilities, Architecture and Planning) with answers and explanations, from every paper.

1. GATE 2023 AR — Planning Q42 (2 marks, Multiple select) – Which statements about composting are correct?
2. GATE 2023 AR — Architecture Q42 (2 marks, Multiple select) – Which statements about composting are correct?
3. GATE 2025 AR — Planning Q17 (1 mark, Multiple choice) – Under Solid Waste Management Rules 2016, co-processing uses which waste categories of calorific value above 1500 kcal/kg as raw material and/or…
4. GATE 2025 AR — Planning Q18 (1 mark, Multiple choice) – Which is closest to an optimum carbon-to-nitrogen ratio for composting?
5. GATE 2025 AR — Architecture Q17 (1 mark, Multiple choice) – Under Solid Waste Management Rules 2016, co-processing uses which waste categories of calorific value above 1500 kcal/kg as raw material and/or…
6. GATE 2025 AR — Architecture Q18 (1 mark, Multiple choice) – Which is closest to an optimum carbon-to-nitrogen ratio for composting?