MCQOPTIONS
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MCQOPTIONS
This section includes 13 Mcqs, each offering curated multiple-choice questions to sharpen your Environment Management knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
What happens if liquid oil contaminates a bird s plumage? |
| A. | Birds bone become week |
| B. | Birds lost its memory |
| C. | Birds digestive system becomes weak |
| D. | Birds lost its water-repellent properties |
| Answer» E. | |
| 2. |
When drill cutting dumped on the seabed which toxic is produced? |
| A. | Toxic nitrites |
| B. | Toxic fluorides |
| C. | Toxic sulphides |
| D. | Toxic hydrates |
| Answer» D. Toxic hydrates | |
| 3. |
What is the meaning of Tainting related to marine pollution? |
| A. | Unpleasant flavor of seafood |
| B. | Unpleasant flavor of water |
| C. | Unpleasant flavor of soil |
| D. | Unpleasant flavor of air |
| Answer» B. Unpleasant flavor of water | |
| 4. |
How many common approaches are used in secondary treatment? |
| A. | One |
| B. | Two |
| C. | Three |
| D. | Four |
| Answer» D. Four | |
| 5. |
What is the main objective of secondary treatment of sewage plants? |
| A. | To remove the suspended particles |
| B. | To remove the contaminants |
| C. | To remove the BOD |
| D. | To remove the organic material |
| Answer» D. To remove the organic material | |
| 6. |
How many percentage of BOD removes in primary treatment? |
| A. | 15% |
| B. | 25% |
| C. | 35% |
| D. | 45% |
| Answer» D. 45% | |
| 7. |
In which of the following treatment of sewage plant we can find disinfection as a step? |
| A. | Secondary process of oxidation pool |
| B. | Secondary treatment of trickling filter |
| C. | Primary treatment |
| D. | Advanced sewage treatment |
| Answer» E. | |
| 8. |
In sewage treatment of oxidation pond we can see the water up to 2 meters deep. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 9. |
In which secondary treatment of sewage treatment sludge is broken down in an anaerobic digester? |
| A. | Oxidation pool |
| B. | Activated sludge process |
| C. | Trickling filter |
| D. | Bed filter |
| Answer» C. Trickling filter | |
| 10. |
Where can we find rotating arm sprays in sewage treatment? |
| A. | Primary treatment |
| B. | Secondary treatment of trickling filter |
| C. | Secondary treatment of activated sludge process |
| D. | Secondary process of oxidation pool |
| Answer» C. Secondary treatment of activated sludge process | |
| 11. |
What is called for the place where lighter, organic material settles in the primary treatment of sewage plant? |
| A. | Primary settling tank |
| B. | Secondary settling tank |
| C. | Grit chamber |
| D. | Coursing chamber |
| Answer» D. Coursing chamber | |
| 12. |
What is called for the removal of sand, gravel in the primary treatment of sewage treatment plant? |
| A. | Course screening |
| B. | Fine screening |
| C. | Grit removal |
| D. | Chlorination |
| Answer» D. Chlorination | |
| 13. |
What is the first step in primary sewage treatment plants? |
| A. | Fine screening |
| B. | Course screening |
| C. | Chlorination |
| D. | Primary settling tank |
| Answer» C. Chlorination | |