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Environmental Engineering Practice Test: Miscellaneous Topics
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Environmental Engineering Practice Test: Miscellaneous Topics
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25 Questions

1. The permissible limit of turbidity of domestic water is ____ ppm.
2. In which type of water demand, the minimum average consumption of water takes place?
3. ______ are used in fine screen so that they do not get clogged up.
4. Which of the following is a biodegradable waste?
5. Sunlight is a ________ method of disinfection.
6. In the ________ zone of purification in filter media, bacteria oxidizes the organic matter completely.
7. Which method of population forecast combines both arithmetical increase and geometrical increase method?
8. Which of the following air pollution control device has maximum efficiency?
9. What is the size of the particles categorised as aerosols?
10. Which gas is released when alum is added to water?
11. Which of the following gas is not colorless?
12. What is the frequency of cleaning of a slow sand filter?
13. Which of the following plants is extremely sensitive towards sulphur dioxide?
14. Which of these is NOT a primary pollutant?
15. What is the chemical formula of bleaching powder?
16. Which of the following factor does not effect the dry weather flow?
17. Which of the mentioned devices are used for removing vapour phase/ gaseous pollutants?
18. By which process, odour producing substances is oxidized?
19. Which device is used to prevent the clogging of sewer pipes?
20. In the lower layers of atmosphere, what range of wavelengths of light is predominant?
21. Ozone is a _______ allotrope of oxygen.
22. Below which of the following pH is rain regarded as ‘acid rain’?
23. The wet weather flow is also known by ______
24. The ozone layer absorbs what range of wavelengths of the sun’s radiation?
25. Which of the following is not a part of photochemical smog?

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