Waste Water Engineering The sewers Must flow under gravity ½ to ¾ full All listed here Must be of adequate size to avoid over flow Must be laid at least 2 to 3 m deep to collect /water from the basements Must flow under gravity ½ to ¾ full All listed here Must be of adequate size to avoid over flow Must be laid at least 2 to 3 m deep to collect /water from the basements ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering It is customary to design a sewer for D.W.F. on the basis of Four times the average demand Thrice the average demand Twice the average demand Average demand Four times the average demand Thrice the average demand Twice the average demand Average demand ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The normal value of over flow rates for plain primary sedimentation tanks, ranges between 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 80,000 to 100,000 litres/sqm/day 40,000 to 50,000 litres/sqm/day ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering 15 cumecs, the depth d and width are related by For drains up to B = 0.5 d d = 0.2 B B = 0.2 d d = 0.5 B B = 0.5 d d = 0.2 B B = 0.2 d d = 0.5 B ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For treating the sewage of a large city, you will recommend Sedimentation tanks with high rate trickling filters A plant consisting of Imhoff tanks with low rate trickling filters A sedimentation tank and an activated sludge treatment plant None of these Sedimentation tanks with high rate trickling filters A plant consisting of Imhoff tanks with low rate trickling filters A sedimentation tank and an activated sludge treatment plant None of these ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Large diameter sewers subjected to external pressure alone, are reinforced Both A and B Near the outer surface of the pipe With elliptical cage Near the inner surface of the pipe Both A and B Near the outer surface of the pipe With elliptical cage Near the inner surface of the pipe ANSWER DOWNLOAD EXAMIANS APP
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