MCQOPTIONS
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MCQOPTIONS
This section includes 11 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. |
What is the type of filter used in the septic tank when the rate of percolation is 90 minutes? |
| A. | Slow sand filter |
| B. | Rapid sand filter |
| C. | Biological filter |
| D. | Trickling filter |
| Answer» D. Trickling filter | |
| 2. |
The minimum depth of septic tank as per design consideration is ___________ |
| A. | 1.8m |
| B. | 1m |
| C. | 1.2m |
| D. | 1.5m |
| Answer» D. 1.5m | |
| 3. |
The concentration of biodegradable organic matter after the septic tank is ___________ |
| A. | 50ppm |
| B. | 100ppm |
| C. | 200ppm |
| D. | 75ppm |
| Answer» D. 75ppm | |
| 4. |
The detention period of a septic tank is ___________ |
| A. | 2 hours |
| B. | 12-36 hours |
| C. | 4 hours |
| D. | 1 week |
| Answer» C. 4 hours | |
| 5. |
What is the type of filter used in septic tank when the rate of percolation is 90 minutes? |
| A. | Slow sand filter |
| B. | Rapid sand filter |
| C. | Biological filter |
| D. | Trickling filter |
| Answer» D. Trickling filter | |
| 6. |
The minimum depth of septic tank as per design consideration is |
| A. | 1.8m |
| B. | 1m |
| C. | 1.2m |
| D. | 1.5m |
| Answer» D. 1.5m | |
| 7. |
Which of the following is not the method of disposal of sewage from septic tank? |
| A. | Upflow anaerobic filter |
| B. | Soil absorption system |
| C. | Vacuum filter |
| D. | Biological filters |
| Answer» D. Biological filters | |
| 8. |
What is the maximum design flow of sewage in a septic tank? |
| A. | 70 liters per person per day |
| B. | 100 liters per person per day |
| C. | 30 liters per person per day |
| D. | 40 liters per person per day |
| Answer» B. 100 liters per person per day | |
| 9. |
The concentration of biodegradable organic matter after the septic tank is |
| A. | 50ppm |
| B. | 100ppm |
| C. | 200ppm |
| D. | 75ppm |
| Answer» D. 75ppm | |
| 10. |
The detention period of a septic tank is |
| A. | 2 hours |
| B. | 12-36 hours |
| C. | 4 hours |
| D. | 1 week |
| Answer» C. 4 hours | |
| 11. |
The disposal of sewage from the septic tank is done by which of the following? |
| A. | Clarifier |
| B. | Soak pit |
| C. | Aerated lagoon |
| D. | Lamp holes |
| Answer» C. Aerated lagoon | |