MCQOPTIONS
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MCQOPTIONS
This section includes 3 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 dewatered sludge cannot be disposed by ___________ |
| A. | Composting |
| B. | Heat drying |
| C. | Acid fermentation |
| D. | Incineration |
| Answer» D. Incineration | |
| 2. |
7% of solids concentration of thickened sludge is obtained from gravity thickener. What is the type of sludge? |
| A. | Primary sludge |
| B. | Secondary sludge |
| C. | Tertiary sludge |
| D. | Activated sludge |
| Answer» E. | |
| 3. |
The design solid surface loading in an activated sludge process is ___________ |
| A. | 10 kg/m<sup>2</sup>/day |
| B. | 25 kg/m<sup>2</sup>/day |
| C. | 15 kg/m<sup>2</sup>/day |
| D. | 35 kg/m<sup>2</sup>/day |
| Answer» C. 15 kg/m<sup>2</sup>/day | |