Waste Water Engineering The sewage discharge in a detritus tank of a treatment plant is 576 litres/sec with flow velocity of 0.2 m/sec. If the ratio of width to depth is 2, the depth is 150 cm 110 cm 100 cm 120 cm 150 cm 110 cm 100 cm 120 cm ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering When drainage to sewage ratio is 20, the peak dry weather flow is Slightly more than 5% of the design discharge Slightly less than 5% of the design discharge 20% of the design discharge None of these Slightly more than 5% of the design discharge Slightly less than 5% of the design discharge 20% of the design discharge None of these 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 25,000 to 35,000 litres/sqm/day 40,000 to 50,000 litres/sqm/day 50,000 to 60,000 litres/sqm/day 80,000 to 100,000 litres/sqm/day 25,000 to 35,000 litres/sqm/day 40,000 to 50,000 litres/sqm/day 50,000 to 60,000 litres/sqm/day ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In septic tanks, decomposition of organic bacteria, is done by Anaerobic bacteria None of these Both types of bacterias Aerobic bacteria Anaerobic bacteria None of these Both types of bacterias Aerobic bacteria ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The grit and silt of the grit chambers, may not be used for Both A and B Raising low lying areas by dumping Neither A nor B Concreting Both A and B Raising low lying areas by dumping Neither A nor B Concreting ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For design of sewers, percentage of sewage discharge is assumed 75 to 80% 65 to 70% 70 to 75% 0.85 75 to 80% 65 to 70% 70 to 75% 0.85 ANSWER DOWNLOAD EXAMIANS APP
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