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Treatment processes (primary, secondary, tertiary) MCQs Civil

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1. Primary treatment in wastewater mainly removes:




2. The main purpose of secondary treatment is:




3. Tertiary treatment is designed to:




4. Which of the following is a primary treatment process?




5. Which process uses microorganisms to degrade organic matter?




6. The activated sludge process is a type of:




7. Trickling filters are:




8. Coagulation and flocculation are usually part of:




9. Chlorination is commonly used in:




10. Screens and grit chambers are used in:




11. The main unit in secondary treatment is:




12. Primary treatment removes approximately:




13. Secondary treatment can remove up to:




14. Tertiary treatment is sometimes called:




15. Biological nutrient removal (BNR) targets:




16. Anaerobic treatment is commonly used for:




17. The clarifier in a treatment plant is part of:




18. Sand filtration is considered:




19. Sludge produced in primary treatment is:




20. Activated sludge process requires:




21. Disinfection in tertiary treatment can be done by:




22. Membrane filtration belongs to:




23. Organic removal in secondary treatment is mainly done by:




24. Primary treatment does not remove:




25. Sludge recirculation is associated with:




26. Constructed wetlands can be used as:




27. Dissolved air flotation (DAF) is used to:




28. Biological aerated filters (BAF) are part of:




29. Sludge digestion is typically done:




30. The main goal of tertiary treatment is to:




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