The method of cleaning of rapid sand filters
ALong laborious method
BCompressed air method
CScraping
DAgitation sod back washing
No.1 PSC Learning App
★
★
★
★
★
Related Questions:
Slow sand filter is efficient to remove the bacteria from the raw water to an extend of:
Which of the following would help prevent escape of foul sewer gases from water closet:
Sewer pipes are made of.
In publics water supply project the coagulation is to be adopted when turbidity of water exceeds
Which of the following sewer appurtenances discharge the excess sewage flow to relief sewer?