engineering recuitment GATE CE 2023-24 Test Series Environmental Engineering Water Treatment Filtration
Which of the statements are true for a Rapid Gravity Filter?
i. The amount of water required for washing a rapid gravity filter is around 2-5 per cent of the total amount of water filtered
ii. The rapid gravity filters are washed once in 3 month
1
Only (i)
2
Only (ii)
3
Both (i) and (ii)
4
Neither (i) nor (ii)