Water is forced at a preseure higher than the atmospheric pressure in rapid gravity filters.

Related MCQs

• Rapid sand filters are cheap and economical as compared to slow sand filters.
• In presure filters, water is forced at a pressure
• Cleaning of rapid sand filters is done by
• The coefficient of uniformity for rapid sand filters is
• The effective size of sand particles for rapid sand filters varies from
• The under drainage system in a rapid sand filters
• Pressure filters are not used for treating municipal water supplies, because
• When in the pervious strata, the surface of water surrounding the well is at atmospheric pressure, the well is known as
• If the level of source of water is higher than that of the place of consumption, the system adopted for supplying water is
• Pressure filters are best suited for