GATE ES concept:air-quality-standards PYQs & Answers

Attempt a question, record the concept and assumptions, then check the available answer. Rework mistakes after revising the relevant concepts. Topic tags can overlap; review the question context.

Questions 1–2 of 2. Imported answers require independent review unless marked reviewed.

Topic practice 2 questionsPage 1 of 1

Consider the following statements

P : According to the National Ambient Air Quality Standards (Central Pollution Control Board, Govt. of India, notification 2009), annual time weighted average PM₁₀ standard is more than PM₂.₅ standard.

Q : According to the National Air Quality Index released by Govt. of India in 2015, sub index value of PM₁₀ can be less than that of PM₂.₅.

Choose the correct option from the following

Your answerChoose one option.

P is TRUE; Q is FALSE

P is FALSE; Q is TRUE

P is TRUE; Q is TRUE

P is FALSE; Q is FALSE

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According to the National Ambient Air Quality Standards (Central Pollution Control Board, Govt. of India, notification 2009) which of the following statement(s) is/are correct?

Your answerSelect all correct options. You can choose more than one.

SO₂ and NO₂ have annual average standards; while O₃ and CO have eight hour average standards.

SO₂ and CO have annual average standards; while O₃ and NO₂ have eight hour average standards.

SO₂ and CO have eight hour average standards; while O₃ and NO₂ have hourly average standards.

SO₂ and NO₂ have 24 hour average standards; while O₃ and CO have hourly average standards.

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GATE ES concept:air-quality-standards PYQs

How to practice concept:air-quality-standards

Question 20

Question 47