Environmental Science and Engineering
2026 · Paper 1
Take it one question at a time. Try an answer, then check your understanding.
Complete GATE ES 2026 Paper 1 overview, original pages and practice · Timed previous-paper practice
Questions 46–48 of 65. Imported answers require review unless explicitly marked reviewed.
Question 46
Open questionESMSQ2 marksNeeds review
Which of the following options is/are CORRECT assumption(s) in the Gaussian plume dispersion model?
Your answerSelect all correct options. You can choose more than one.
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Open questionESNAT2 marksNeeds review
The sound level measured at various locations in an urban area is given in the table. The average sound level for that area is ______ dBA (rounded off to two decimal places).
Location | A | B | C | D |
|---|---|---|---|---|
Sound level (dBA) | 40 | 55 | 65 | 75 |
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Open questionESNAT2 marksNeeds review
Standard deviation for the particulate matter (PM) concentrations listed in the table is ______ μg/m³ (rounded off to one decimal place).
Location No. | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
|---|---|---|---|---|---|---|---|
PM concentration (μg/m³) | 45 | 40 | 55 | 65 | 60 | 35 | 50 |
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