Waste Water Engineering With self cleansing velocity in sewers Silting occurs at bottom Neither silting nor scouring occurs at bottom Both silting and scouring occur at bottom Scouring occurs at bottom Silting occurs at bottom Neither silting nor scouring occurs at bottom Both silting and scouring occur at bottom Scouring occurs at bottom ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The ratio of minimum hourly flow to the average flow of sewage is 43894 43832 43834 43833 43894 43832 43834 43833 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The moisture content of sludge is reduced from 90% to 80% in a sludge digestion tank. The percentage decrease in the volume of sludge, is 0.05 0.25 0.1 0.5 0.05 0.25 0.1 0.5 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The normal value of over flow rates for plain primary sedimentation tanks, ranges between 40,000 to 50,000 litres/sqm/day 80,000 to 100,000 litres/sqm/day 50,000 to 60,000 litres/sqm/day 25,000 to 35,000 litres/sqm/day 40,000 to 50,000 litres/sqm/day 80,000 to 100,000 litres/sqm/day 50,000 to 60,000 litres/sqm/day 25,000 to 35,000 litres/sqm/day ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In a trickling filter Both A and B Filtration process is used Biological action is used Neither A nor B Both A and B Filtration process is used Biological action is used Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
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 Bazin Chezy Kutter Manning Bazin Chezy Kutter Manning ANSWER DOWNLOAD EXAMIANS APP
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