 
			 
			MCQOPTIONS
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				This section includes 4 Mcqs, each offering curated multiple-choice questions to sharpen your Waste Water Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 1. | While designing the aerated lagoon with solid recycling what is the solid retention time considered on a warm day? | 
| A. | t10-20 days | 
| B. | t40 days | 
| C. | t25 days | 
| D. | t30 days | 
| Answer» B. t40 days | |
| 2. | While designing the aerated lagoon what is the solid retention time considered? | 
| A. | t7-8 days | 
| B. | t3-6 days | 
| C. | t1-2 days | 
| D. | t10 days | 
| Answer» C. t1-2 days | |
| 3. | What is the ratio of VSS/TSS in ppm obtained when partially mixed lagoons treatment are carried out facultatively? | 
| A. | t20-30 | 
| B. | t40-50 | 
| C. | t50-80 | 
| D. | t80-100 | 
| Answer» D. t80-100 | |
| 4. | What is the ratio of VSS/TSS in ppm obtained when aerated lagoons are used for treatment? | 
| A. | t10-20 | 
| B. | t20-30 | 
| C. | t70-80 | 
| D. | t80-100 | 
| Answer» D. t80-100 | |