Q1. Which process is commonly used for primary treatment of wastewater?
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Q2. BOD in environmental engineering stands for:
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Q3. Activated sludge process is used for:
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Q4. Which gas is a major contributor to acid rain?
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Q5. Which of the following is a common method of solid waste disposal?
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Q6. The main cause of eutrophication is:
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Q7. What type of filtration removes microorganisms?
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Q8. Primary source of ground water contamination is:
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Q9. Which pollutant is mainly responsible for ozone layer depletion?
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Q10. Noise pollution is measured in:
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Q11. Which method is used for nitrogen removal in wastewater?
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Q12. Which of the following is a pathogenic indicator in water?
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Q13. Flocculation is:
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Q14. The common disinfectant used in water treatment is:
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Q15. Which process reduces Biological Oxygen Demand (BOD) in water?
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Q16. The pH of rainwater affected by acid rain is typically:
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Q17. Heavy metals in wastewater are removed by:
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Q18. Anaerobic digestion in wastewater treatment produces:
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Q19. Which of the following is an example of renewable energy source?
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Q20. Biofilters in environmental engineering are primarily used for:
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