MCQOPTIONS
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MCQOPTIONS
This section includes 19 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 maximum filter head up to which slow sand filters are worked upon? |
| A. | 25cm |
| B. | 50cm |
| C. | 75cm |
| D. | 100cm |
| Answer» D. 100cm | |
| 2. |
What is the frequency of cleaning of a slow sand filter? |
| A. | 1 week |
| B. | 1-3 months |
| C. | 2-3 days |
| D. | 2-3 weeks |
| Answer» C. 2-3 days | |
| 3. |
The slow sand filter is designed for _____________ |
| A. | Maximum daily demand |
| B. | Maximum yearly demand |
| C. | Average daily demand |
| D. | Maximum weekly demand |
| Answer» B. Maximum yearly demand | |
| 4. |
The maximum daily demand of a city is 24*105 and the rate of filtration is 100 per litre per hour per m2. What is the area of the filter? |
| A. | 10 |
| B. | 100 |
| C. | 1000 |
| D. | 1500 |
| Answer» D. 1500 | |
| 5. |
The slow sand filter is efficient in removing turbidity of water. |
| A. | True |
| B. | False |
| Answer» C. | |
| 6. |
The minimum number of filter beds in the slow sand filter is __________ |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 3 |
| Answer» C. 3 | |
| 7. |
The thickness of the base material on which filter media are supported is __________ |
| A. | 10-100cm |
| B. | 20-80cm |
| C. | 30-75cm |
| D. | 10-30cm |
| Answer» D. 10-30cm | |
| 8. |
When the fineness of sand increases __________ |
| A. | The bacterial efficiency increases |
| B. | The rate of filtration increases |
| C. | The rate of filtration first decrease, then increase |
| D. | The bacterial efficiency remains constant |
| Answer» B. The rate of filtration increases | |
| 9. |
The depth of an enclosed tank of a slow sand filter lies in the range of ______ |
| A. | 1-2m |
| B. | 2.5-4m |
| C. | 2-5m |
| D. | 3-5m |
| Answer» C. 2-5m | |
| 10. |
THE_SLOW_SAND_FILTER_IS_DESIGNED_FOR?$ |
| A. | Maximum daily demand |
| B. | Maximum yearly demand |
| C. | Average daily demand |
| D. | Maximum weekly demand |
| Answer» B. Maximum yearly demand | |
| 11. |
What is the maximum filter head up to which slow sand filters are worked upon?$ |
| A. | 25cm |
| B. | 50cm |
| C. | 75cm |
| D. | 100cm |
| Answer» D. 100cm | |
| 12. |
What_is_the_frequency_of_cleaning_of_a_slow_sand_filter?$ |
| A. | 1 week |
| B. | 1-3 months |
| C. | 2-3 days |
| D. | 2-3 weeks |
| Answer» C. 2-3 days | |
| 13. |
The maximum daily demand of a city is 24*105 and the rate of filtration is 100 per litre per hour per m2. What is the area of the filter? |
| A. | 10 |
| B. | 100 |
| C. | 1000 |
| D. | 1500 |
| Answer» D. 1500 | |
| 14. |
The slow sand filter is able to remove ______ % of bacteria in water. |
| A. | 90 |
| B. | 95 |
| C. | 98-99 |
| D. | 100 |
| Answer» D. 100 | |
| 15. |
The area of the filter is 1500. What is the number of beds to be provided? |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 6 |
| Answer» C. 3 | |
| 16. |
The minimum number of filter beds in the slow sand filter is |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 3 |
| Answer» C. 3 | |
| 17. |
The thickness of the base material on which filter media are supported is |
| A. | 10-100cm |
| B. | 20-80cm |
| C. | 30-75cm |
| D. | 10-30cm |
| Answer» D. 10-30cm | |
| 18. |
When the fineness of sand increases |
| A. | The bacterial efficiency increases |
| B. | The rate of filtration increases |
| C. | The rate of filtration first decrease, then increase |
| D. | The bacterial efficiency remains constant |
| Answer» B. The rate of filtration increases | |
| 19. |
The depth of an enclosed tank of a slow sand filter lies in the range of ______ |
| A. | 1-2m |
| B. | 2.5-4m |
| C. | 2-5m |
| D. | 3-5m |
| Answer» C. 2-5m | |