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GATE ES: Environmental Microbiology previous year questions

32 real GATE ES questions on Environmental Microbiology from 2022–2026, with the official answer to each. Try them here, or practise this topic free on Student AI Hub with instant checking and your score.

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Environmental Microbiology in GATE at a glance

Questions
32
1-mark / 2-mark
14 / 18
Numerical (NAT)
4
Multiple select (MSQ)
9

Questions per year: 2026: 6 · 2025: 7 · 2024: 6 · 2023: 8 · 2022: 5.

Environmental Microbiology questions

Each question is shown exactly as in the official paper. Tap “Show answer” to check yourself.

GATE 2026 · Q.17 · 1 mark · MCQ

GATE ES Environmental Microbiology question, GATE 2026 Q.17
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Answer: A · see the full paper

GATE 2026 · Q.18 · 1 mark · MCQ

GATE ES Environmental Microbiology question, GATE 2026 Q.18
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Answer: C · see the full paper

GATE 2026 · Q.38 · 2 marks · MCQ

GATE ES Environmental Microbiology question, GATE 2026 Q.38
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Answer: C · see the full paper

GATE 2026 · Q.43 · 2 marks · MSQ

GATE ES Environmental Microbiology question, GATE 2026 Q.43
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Answer: A, B, D · see the full paper

GATE 2026 · Q.53 · 2 marks · NAT

GATE ES Environmental Microbiology question, GATE 2026 Q.53
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Answer: 256 · see the full paper

GATE 2026 · Q.54 · 2 marks · NAT

GATE ES Environmental Microbiology question, GATE 2026 Q.54
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Answer: 50 · see the full paper

GATE 2025 · Q.15 · 1 mark · MCQ

GATE ES Environmental Microbiology question, GATE 2025 Q.15
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Answer: C · see the full paper

GATE 2025 · Q.25 · 1 mark · MSQ

GATE ES Environmental Microbiology question, GATE 2025 Q.25
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Answer: A, C · see the full paper

GATE 2025 · Q.26 · 1 mark · MSQ

GATE ES Environmental Microbiology question, GATE 2025 Q.26
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Answer: A, C · see the full paper

GATE 2025 · Q.30 · 1 mark · MSQ

GATE ES Environmental Microbiology question, GATE 2025 Q.30
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Answer: C, D · see the full paper

GATE 2025 · Q.38 · 2 marks · MCQ

GATE ES Environmental Microbiology question, GATE 2025 Q.38
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Answer: C · see the full paper

GATE 2025 · Q.44 · 2 marks · MSQ

GATE ES Environmental Microbiology question, GATE 2025 Q.44
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Answer: A, D · see the full paper

GATE 2025 · Q.51 · 2 marks · NAT

GATE ES Environmental Microbiology question, GATE 2025 Q.51
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Answer: 46.5 to 47.3 · see the full paper

GATE 2024 · Q.14 · 1 mark · MCQ

GATE ES Environmental Microbiology question, GATE 2024 Q.14
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Answer: A · see the full paper

GATE 2024 · Q.15 · 1 mark · MCQ

GATE ES Environmental Microbiology question, GATE 2024 Q.15
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Answer: C · see the full paper

GATE 2024 · Q.16 · 1 mark · MCQ

GATE ES Environmental Microbiology question, GATE 2024 Q.16
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Answer: B · see the full paper

GATE 2024 · Q.43 · 2 marks · MSQ

GATE ES Environmental Microbiology question, GATE 2024 Q.43
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Answer: A, B · see the full paper

GATE 2024 · Q.44 · 2 marks · MSQ

GATE ES Environmental Microbiology question, GATE 2024 Q.44
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Answer: A, B, C · see the full paper

GATE 2024 · Q.45 · 2 marks · MSQ

GATE ES Environmental Microbiology question, GATE 2024 Q.45
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Answer: A, C · see the full paper

GATE 2023 · Q.15 · 1 mark · MCQ

GATE ES Environmental Microbiology question, GATE 2023 Q.15
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Answer: A · see the full paper

GATE 2023 · Q.16 · 1 mark · MCQ

GATE ES Environmental Microbiology question, GATE 2023 Q.16
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Answer: A · see the full paper

GATE 2023 · Q.17 · 1 mark · MCQ

GATE ES Environmental Microbiology question, GATE 2023 Q.17
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Answer: A · see the full paper

GATE 2023 · Q.37 · 2 marks · MCQ

GATE ES Environmental Microbiology question, GATE 2023 Q.37
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Answer: D · see the full paper

GATE 2023 · Q.38 · 2 marks · MCQ

GATE ES Environmental Microbiology question, GATE 2023 Q.38
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Answer: D · see the full paper

GATE 2023 · Q.39 · 2 marks · MCQ

GATE ES Environmental Microbiology question, GATE 2023 Q.39
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Answer: A · see the full paper

GATE 2023 · Q.42 · 2 marks · MCQ

GATE ES Environmental Microbiology question, GATE 2023 Q.42
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Answer: B · see the full paper

GATE 2023 · Q.55 · 2 marks · NAT

GATE ES Environmental Microbiology question, GATE 2023 Q.55
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Answer: 0.4 to 0.44 · see the full paper

GATE 2022 · Q.16 · 1 mark · MCQ

GATE ES Environmental Microbiology question, GATE 2022 Q.16
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Answer: C · see the full paper

GATE 2022 · Q.17 · 1 mark · MCQ

GATE ES Environmental Microbiology question, GATE 2022 Q.17
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Answer: B · see the full paper

GATE 2022 · Q.38 · 2 marks · MCQ

GATE ES Environmental Microbiology question, GATE 2022 Q.38
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Answer: C · see the full paper

GATE 2022 · Q.39 · 2 marks · MCQ

GATE ES Environmental Microbiology question, GATE 2022 Q.39
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Answer: B · see the full paper

GATE 2022 · Q.44 · 2 marks · MSQ

GATE ES Environmental Microbiology question, GATE 2022 Q.44
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Answer: A, B, C · see the full paper

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