The bed slope in slow sand filters, is generally kept

Related MCQs

• In slow sand filters, the turbidity of raw water can be removed only up to
• After cleaning a slow sand filter, the filtered water is not used for
• A slow sand filter is cleaned if its filter head is higher than
• The chlorine supply cylinders are generally kept at 38°C to 40°C to prevent
• The intake opening is generally covered by a screen to prevent entry of debris etc. and its level is kept
• Rapid gravity filters can remove bacterial impurities up to a maximum of
• The bottom of the sewage inlet chamber of septic tanks, is provided an outward slope
• In a rapid sand filter, air binding is caused due to excessive
• The U.C. (uniformity coefficient) D60/D10 for the best filter media sand should be
• Inter-distance between ventilation columns in a sewer line is kept