McqMate
| Q. |
After cleaning a slow sand filter, the filtered water is not used for |
| A. | 6 hours to 12 hours |
| B. | 12 hours to 18 hours |
| C. | 18 hours to 24 hours |
| D. | 24 hours to 36 hours |
| Answer» D. 24 hours to 36 hours | |
View all MCQs in
Water and Wastewater EngineeringNo comments yet