Environmental Engineering Part 3

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1. In urban air pollution, the most poisonous gas is supposed to be carbon monoxide. It is hazardous because it

2. Broadly speaking, water is

3. Which one of the following pollutants or pairs of pollutants is formed due to photochemical reactions?

4. Which of the following is the best indicator of SO2  pollutant?

5. For a given discharge, the efficiency of sedimentation tank can be increased by

6. The pipe joint commonly used in pumping stations is

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

8. The water utilizable by plants is available in the form of

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

10. What are the air pollutants responsible for acid rain within and downwind areas of major industrial emissions?



Arbaj 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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