Catalytic converter does

  1. Unburnt Hydrocarbons are converted into carbon dioxide and water
  2. CO is converted into Carbon dioxide
  3. Nitric acid is converted into Nitrogen G gas
  4. All of these
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If one is using Catalytic Converter in his vehicle then he should use

  1. Leaded petrol as it activates the catalyst
  2. Unleaded petrol activates the catalyst
  3. Leaded petrol as it inactivates the catalyst
  4. Unleaded petrol as lead inactivates the catalyst
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The Air Prevention and Control of Pollution act came into force in….. but was amended in …..

  1. 1981, 1986
  2. 1986, 1987
  3. 1981, 1987
  4. 1976, 1986
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Ear drums can be damaged by

(Which of the following is the accurate data)

  1. A sound of 200 dB or more
  2. A sound of 80 dB or more
  3. A sound of 150 dB or more
  4. A sound of 60 dB or more

Concept Questions :-

Air Pollution
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Noise does not cause

  1. Sleeplessness
  2. Increased heartbeat, Altered breathing pattern
  3. Nausea, change in vision
  4. Stress
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Noise pollution can be controlled by

  1. Use of sound absorbent material
  2. Delimitation of horn free zones around hospitals and schools
  3. Permissible sound levels of crackers and timing of loud speakers
  4. All of these
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Which of the following is wrong?

  1. Delhi leads the country in its level of air pollution
  2. Delhi has more cars than the states of Gujrat and West Bengal put together
  3. In 1990s, Delhi ranked fourth among the 41 most polluted cities of the world
  4. PIL was filed in High court against the Air pollution in Delhi

Concept Questions :-

Air Pollution
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All the buses of Delhi were converted to run on CNG

  1. Before the orders of Supreme court
  2. By the end of 2002
  3. In 1990
  4. Under the act of environment in 1987
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CNG is better than petrol and diesel

  1. It burns more efficiently
  2. Is left unburnt in very little amount
  3. Cheaper
  4. All of these
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Problems with CNG as the only fuel for automobiles is

  1. Difficulty in laying down pipelines for the distribution of CNG
  2. Difficulty in ensuring uninterrupted supply
  3. Can be siphoned off by thieves
  4. Both A and B
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