Waste Water Engineering The spacing of bars of perforations of fine screens used for the treatment of sewage, is 2 to 3 mm 8 to 10 mm 3 to 5 mm 5 to 8 mm 2 to 3 mm 8 to 10 mm 3 to 5 mm 5 to 8 mm ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The disintegrating pump in which solid matter is broken up before passing out, is None of these Pneumatic ejector Reciprocating pump Centrifugal pump None of these Pneumatic ejector Reciprocating pump Centrifugal pump ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering As compared to fresh river water, sea water contains oxygen 10% more 20% less 10% less 20% more 10% more 20% less 10% less 20% more ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Disposal to sewage in large cities, is done in Dilution Oxidation Purification Irrigation Dilution Oxidation Purification Irrigation ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Rate of flow of sewage is generally assumed Less than the rate of water supply At 150 litres per capita More than the rate of water supply Equal to the rate of water supply Less than the rate of water supply At 150 litres per capita More than the rate of water supply Equal to the rate of water supply ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If a 2% solution of sewage sample is incubated for 5 days at 20°C and the dissolved oxygen depletion was found to be 8 mg/l. The BOD of the sewage is 400 mg/l 100 mg/l 300 mg/l 200 mg/l 400 mg/l 100 mg/l 300 mg/l 200 mg/l ANSWER DOWNLOAD EXAMIANS APP
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