Environmental Engineering Part 3

March 15, 2021

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1. The amount of residual chlorine left in public water supply for safety against pathogenic bacteria is about

2. The dispersion of air pollutants in atmosphere is maximum when

3. Concentration of ozone in clean air is

4. The permissible limit of arsenic in drinking water as per the guidelines of WHO is

5. Disinfection of water results in

6. Water containing substances which are undesirable, harmful or unfit for drinking and domestic uses is called

7. Which of the following air pollutants are responsible for the Green House effect?
  1. Methane
  2. Carbon dioxide
  3. Chlorofluorocarbons
  4. Nitrogen oxides

8. The maximum permissible limit for fluoride in drinking water is

9. For very strong sewage, BOD will be

10. Which one of the following sequences is the most suitable for treating raw surface water to make it suitable for drinking purpose?


 

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A Demrot is the founder of VideRime Online Learning, a leading engineering website. He did his BE Civil and M.Tech Structure from RGPV University, Bhopal and has been working as an Assistant Professor in a reputed college.

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