Waste Water Engineering If is the rugosity coefficient, is the bed slope of sewer, the velocity of flow in m/sec may be obtained by the formula V = (1/n) r2/3 s1/2 evolved by Chezy Kutter Manning Bazin Chezy Kutter Manning Bazin ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Sewer pipes are designed for maximum discharge with 25% to 33% vacant cross-sectional area for Unexpected large scale infiltration of stream water All of these Under estimates of maximum and average flows Unexpected increase in the population Unexpected large scale infiltration of stream water All of these Under estimates of maximum and average flows Unexpected increase in the population ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The rate of accumulation of sludge in septic tanks is recommended as 30 litres/person/year 25 litres/person/month 25 litres/person/year 30 litres/person/month 30 litres/person/year 25 litres/person/month 25 litres/person/year 30 litres/person/month ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Dried sewage after treatment is used as Building material Base material for paints Fertilizer Chemical for lowering B.O.D. Building material Base material for paints Fertilizer Chemical for lowering B.O.D. ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In a trickling filter Both A and B Neither A nor B Filtration process is used Biological action is used Both A and B Neither A nor B Filtration process is used Biological action is used ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Aerobic bacterias Oxidise organic matter in sewage Flourish in the presence of free oxygen All of these Consume organic matter as their food Oxidise organic matter in sewage Flourish in the presence of free oxygen All of these Consume organic matter as their food ANSWER DOWNLOAD EXAMIANS APP
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