MCQOPTIONS
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MCQOPTIONS
This section includes 19 Mcqs, each offering curated multiple-choice questions to sharpen your Applied Chemistry knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
In anaerobic treatment the organic acid and alcohol is undergone into ___________ process. |
| A. | Sedimentation |
| B. | Screening |
| C. | Catalysis |
| D. | Fermentation |
| Answer» E. | |
| 2. |
By aerobic process _________ of biodegradable water is converted into the biomass. |
| A. | 10% |
| B. | 30% |
| C. | 50% |
| D. | 75% |
| Answer» D. 75% | |
| 3. |
Aerobic process is also called as ___________ |
| A. | Activated sludge process |
| B. | Sludge thickening process |
| C. | Sedimentation |
| D. | Screening |
| Answer» B. Sludge thickening process | |
| 4. |
In final step of the domestic water process, the effluent contain ___________ BOD. |
| A. | 10ppm |
| B. | 15ppm |
| C. | 20ppm |
| D. | 25ppm |
| Answer» E. | |
| 5. |
The BOD value of industrial waste must be about _________ |
| A. | 100 |
| B. | 200 |
| C. | 300 |
| D. | 400 |
| Answer» C. 300 | |
| 6. |
Domestic water treatment is carried out under __________ conditions. |
| A. | Aerobic |
| B. | Anaerobic |
| C. | Cannot be known |
| D. | Depends on the pollution level of water |
| Answer» B. Anaerobic | |
| 7. |
Non hazardous organic wastes from the sewage is to be separated from the ___________ |
| A. | Toxic industrial wastes |
| B. | Bacteria |
| C. | Helminth |
| D. | Protozoa |
| Answer» B. Bacteria | |
| 8. |
The BOD value of the domestic sewage is about __________ |
| A. | 160 |
| B. | 161 |
| C. | 166 |
| D. | 168 |
| Answer» D. 168 | |
| 9. |
AEROBIC_PROCESS_IS_ALSO_CALLED_AS____________?$ |
| A. | Activated sludge process |
| B. | Sludge thickening process |
| C. | Sedimentation |
| D. | Screening |
| Answer» B. Sludge thickening process | |
| 10. |
In anaerobic treatment the organic acid and alcohol is undergone into ___________ process. |
| A. | Sedimentation |
| B. | Screening |
| C. | Catalysis |
| D. | Fermentation |
| Answer» E. | |
| 11. |
By aerobic process _________ of biodegradable water is converted into the biomass. |
| A. | 10% |
| B. | 30% |
| C. | 50% |
| D. | 75% |
| Answer» D. 75% | |
| 12. |
In final step of the domestic water process, the effluent contain ___________ BOD? |
| A. | 10ppm |
| B. | 15ppm |
| C. | 20ppm |
| D. | 25ppm |
| Answer» E. | |
| 13. |
In the domestic water process, when air is sent during the active sludge, then _________ released. |
| A. | Oxygen |
| B. | Carbondioxide |
| C. | Nitrogen |
| D. | Chlorine |
| Answer» C. Nitrogen | |
| 14. |
In domestic water treatment, after the primary treatment _________ is done. |
| A. | Screening |
| B. | Sedimentation |
| C. | Aerobic process |
| D. | Anaerobic process |
| Answer» B. Sedimentation | |
| 15. |
The BOD value of the food industry is about ___________ |
| A. | 742 |
| B. | 743 |
| C. | 744 |
| D. | 745 |
| Answer» E. | |
| 16. |
The BOD value of the industrial waste must be about _________ |
| A. | 100 |
| B. | 200 |
| C. | 300 |
| D. | 400 |
| Answer» C. 300 | |
| 17. |
Domestic water treatment is carried out under __________ conditions. |
| A. | Aerobic |
| B. | Anaerobic |
| C. | Cannot be known |
| D. | Depends on the pollution level of water |
| Answer» B. Anaerobic | |
| 18. |
Non hazardous organic wastes from the sewage is to be separated from the___________ |
| A. | Toxic industrial wastes |
| B. | Bacteria |
| C. | Helminth |
| D. | Protozoa |
| Answer» B. Bacteria | |
| 19. |
The BOD value of the domestic sewage is about__________ |
| A. | 160 |
| B. | 161 |
| C. | 166 |
| D. | 168 |
| Answer» D. 168 | |