GATE Infrastructure, Services and Utilities: Water treatment – Previous Year Questions

5 GATE previous year questions on Water treatment (Infrastructure, Services and Utilities, Architecture and Planning) with answers and explanations, from every paper.

1. GATE 2021 AR Q41 (2 marks, Multiple choice) – Match impurities P fine suspended matter, Q pathogenic bacteria, R colour/odour/taste, S floating leaves with processes 1 aeration, 2 plain…
2. GATE 2024 AR — Planning Q20 (1 mark, Multiple select) – Which sequences occur in conventional water treatment?
3. GATE 2024 AR — Architecture Q20 (1 mark, Multiple select) – Which sequences occur in conventional water treatment?
4. GATE 2025 AR — Planning Q36 (2 marks, Multiple select) – Which methods desalinate water?
5. GATE 2025 AR — Architecture Q36 (2 marks, Multiple select) – Which methods desalinate water?