MCQOPTIONS
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MCQOPTIONS
This section includes 7 Mcqs, each offering curated multiple-choice questions to sharpen your Environmental Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The sludge treatment process to increase the solid content of sludge is ___________ |
| A. | Dewatering |
| B. | Thickening |
| C. | Conditioning |
| D. | Drying |
| Answer» C. Conditioning | |
| 2. |
Simplex aerator is a type of ___________ |
| A. | Combined aerator |
| B. | Mechanical aerator |
| C. | Ridge and furrow type aerator |
| D. | Spiral flow type aerator |
| Answer» C. Ridge and furrow type aerator | |
| 3. |
Dorroco aerator is a type of ___________ |
| A. | Combined aerator |
| B. | Mechanical aerator |
| C. | Ridge and furrow type aerator |
| D. | Spiral flow type aerator |
| Answer» B. Mechanical aerator | |
| 4. |
The speed at which the bubbles are formed in the simplex aerator? |
| A. | 15rpm |
| B. | 20rpm |
| C. | 60rpm |
| D. | 30rpm |
| Answer» D. 30rpm | |
| 5. |
The minimum detention period of combined aerator is ___________ |
| A. | 1 hour |
| B. | 2 hours |
| C. | 3 hours |
| D. | 4 hours |
| Answer» D. 4 hours | |
| 6. |
The detention period of the Sheffield mechanical aeration tank is ___________ |
| A. | 15 hours |
| B. | 1minute |
| C. | 1 hour |
| D. | 4 hours |
| Answer» B. 1minute | |
| 7. |
The device used for the aeration in the combined aerator is ___________ |
| A. | Header pipe |
| B. | Diffuser plate and paddles |
| C. | Cone with spiral vanes |
| D. | Diffuser plate |
| Answer» C. Cone with spiral vanes | |