Electrostatic Precipitator has

  1. An instruction of low velocity of air between the plates
  2. An instruction of high velocity of air between the plates to allow rapid fall of dust particles
  3. An instruction of no air between plates so that charge may not get disturbed
  4. Both A and C
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Scrubber

  1. Can remove only sulphur dioxide
  2. Can remove gases like sulphur dioxide
  3. Can remove harmless gases
  4. Mix harmless gases with gaseous pollutants
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In scrubber, exhaust is passed through

  1. A spray of water/lime
  2. A spray of electrons
  3. A spray of other harmless gases
  4. All of these
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CPCB stands for

  1. Control Pollution Central Board
  2. Central Population Control Board
  3. Central Pollution Control Board
  4. Control Population Central Board
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According to CPCB, Particulate size ------ or less in diameter are responsible for causing the greatest harm to human health.
1. 2.5 micrometer
2. 2.5 nanometer
3. 5 nanometer
4. 5 micrometer

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The particulate matter cannot cause

  1. Breathing respiratory symptoms
  2. Irritation, premature death
  3. Inflammation and damage to the lungs
  4. Gastric ulcer and Rhinitis
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In metro cities, which of the following is the major cause of atmospheric Pollution?

  1. Automobiles
  2. Population
  3. Industries
  4. All of these
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To stop, automobile based environmental pollution, which of the following is not going to be a helpful measure?

  1. Proper maintenance of automobile
  2. Use of lead free petrol or diesel
  3. Catalytic Converters
  4. Scrubber
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Which of the following is not a metal of catalytic converter?

  1. Platinum
  2. Palladium
  3. Rhodium
  4. Molybdenum
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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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