Cleaning period for a slow sand filter is taken as

Related MCQs

• After cleaning the slow sand filter, the filtered water should not be used for a period of
• Cleaning period for a rapid sand filter is taken as
• Slow sand filter is more efficient for the removal of
• The slow sand filter should be cleaned if the loss of head becomes more than
• Rate of filteration of a slow sand filter ranges from
• Slow sand filter is efficient to remove the bacterias from the raw water to an extent of
• In a rapid sand filter, the filter head varies from
• Rapid sand filters are cheap and economical as compared to slow sand filters.
• The effective size of sand particles for slow sand filters varies from
• Cleaning of rapid sand filters is done by