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. |
The treatment of water with _________ improves the taste of water. |
| A. | Oxygen |
| B. | Chlorine |
| C. | KMnO4 |
| D. | Ozone |
| Answer» E. | |
| 2. |
Reacting the water with _________ removes the odour due to the phenols. |
| A. | KMnO4 |
| B. | MnO4 |
| C. | Potassium |
| D. | Magnesium |
| Answer» B. MnO4 | |
| 3. |
__________ imparts peculiar odour to the water. |
| A. | Decaying organic matter |
| B. | Detergents |
| C. | Phenols |
| D. | Dissolved oxygen |
| Answer» C. Phenols | |
| 4. |
The unpleasant odour of the water is due to presence of the __________ |
| A. | Nitrogen |
| B. | Bismuth |
| C. | Phenols |
| D. | Dissolved oxygen |
| Answer» D. Dissolved oxygen | |
| 5. |
Dried sludge can be used as _________ |
| A. | Fertilizer |
| B. | Pesticide |
| C. | Reagent |
| D. | Medicine |
| Answer» B. Pesticide | |
| 6. |
In biological oxidation process, depending on the organic load, the oxidation takes place ___________ |
| A. | 1-4Hours |
| B. | 4-8Hours |
| C. | 8-16Hours |
| D. | 16-20Hours |
| Answer» C. 8-16Hours | |
| 7. |
THE_UNPLEASANT_ODOUR_OF_THE_WATER_IS_DUE_TO_PRESENCE_OF_THE___________?$ |
| A. | Nitrogen |
| B. | Bismuth |
| C. | Phenols |
| D. | Dissolved oxygen |
| Answer» D. Dissolved oxygen | |
| 8. |
Reacting the water with _________ removes the odour due to the phenols. |
| A. | KMnO<sub>4</sub> |
| B. | MnO<sub>4</sub> |
| C. | Potassium |
| D. | Magnesium |
| Answer» B. MnO<sub>4</sub> | |
| 9. |
___________imparts_peculiar_odour_to_the_water.$ |
| A. | Decaying organic matter |
| B. | Detergents |
| C. | Phenols |
| D. | Dissolved oxygen |
| Answer» C. Phenols | |
| 10. |
How many methods of removing the radio active impurities are there? |
| A. | 2 |
| B. | 3 |
| C. | 3 |
| D. | 4 |
| Answer» B. 3 | |
| 11. |
The_treatment_of_water_with___________improves_the_taste_of_water. |
| A. | Oxygen |
| B. | Chlorine |
| C. | KMnO<sub>4</sub> |
| D. | Ozone |
| Answer» E. | |
| 12. |
Dried sludge can be used as ________? |
| A. | Fertilizer |
| B. | Pesticide |
| C. | Reagent |
| D. | Medicine |
| Answer» B. Pesticide | |
| 13. |
In the trickling filter process, the _________ build up and they block the passage. |
| A. | Sludge formed |
| B. | Dissolved impurities |
| C. | Dissolved solids |
| D. | Micro organisms |
| Answer» E. | |
| 14. |
Periodic cleaning is used to _________ |
| A. | Increase efficiency |
| B. | Decrease efficiency |
| C. | Increase pressure |
| D. | Decrease dissolved oxygen |
| Answer» B. Decrease efficiency | |
| 15. |
The depth of the rectangular circular tanks in the trickling filters method is having the depth of ____________ |
| A. | 4m |
| B. | 3m |
| C. | 2m |
| D. | 1m |
| Answer» D. 1m | |
| 16. |
Trickling filter method is ___________ than the activated sludge process. |
| A. | Fast |
| B. | Slow |
| C. | Very fast |
| D. | Moderate |
| Answer» C. Very fast | |
| 17. |
The water after removing of sludge in the biological oxidation process is treated with ____________ |
| A. | Chlorine |
| B. | Bromine |
| C. | Fluorine |
| D. | Iodine |
| Answer» B. Bromine | |
| 18. |
All impurities are oxidised into the _________ and ___________ in the biological oxidation process. |
| A. | Oxygen and water |
| B. | Carbondioxide and water |
| C. | Nitrogen and water |
| D. | Chlorine an water |
| Answer» C. Nitrogen and water | |
| 19. |
In biological oxidation process, depending on the organic load, the oxidation takes place ___________ |
| A. | 1-4Hours |
| B. | 4-8Hours |
| C. | 8-16Hours |
| D. | 16-20Hours |
| Answer» C. 8-16Hours | |