Waste Water Engineering The spacing of bars of perforations of fine screens used for the treatment of sewage, is 2 to 3 mm 5 to 8 mm 8 to 10 mm 3 to 5 mm 2 to 3 mm 5 to 8 mm 8 to 10 mm 3 to 5 mm ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For treating the sewage of a large city, you will recommend A sedimentation tank and an activated sludge treatment plant Sedimentation tanks with high rate trickling filters A plant consisting of Imhoff tanks with low rate trickling filters None of these A sedimentation tank and an activated sludge treatment plant Sedimentation tanks with high rate trickling filters A plant consisting of Imhoff tanks with low rate trickling filters None of these ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Fresh sewage is generally Acidic Alkaline Highly decomposed A source of objectionable odour Acidic Alkaline Highly decomposed A source of objectionable odour ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The most widely used pump for lifting sewage is Pneumatic ejector Reciprocating pump Centrifugal pump Air pressure pump Pneumatic ejector Reciprocating pump Centrifugal pump Air pressure pump ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The normal values of over flow rates for sedimentation tanks using coagulant, ranges between 80,000 to 100,000 litres/sqm/day 40,000 to 50,000 litres/sqm/day 25,000 to 35,000 litres/sqm/day 50,000 to 60,000 litres/sqm/day 80,000 to 100,000 litres/sqm/day 40,000 to 50,000 litres/sqm/day 25,000 to 35,000 litres/sqm/day 50,000 to 60,000 litres/sqm/day ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In a grit chamber of a sewage treatment plant, Depth of 0.9 m to 1.20 m is kept One minute of detention period is kept Flow velocity 0.15 m to 0.3 m/sec is kept All of these Depth of 0.9 m to 1.20 m is kept One minute of detention period is kept Flow velocity 0.15 m to 0.3 m/sec is kept All of these ANSWER DOWNLOAD EXAMIANS APP
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