Waste Water Engineering Acid regression stage of sludge digestion at a temperature 21°C extends over a period of 60 days 15 days 90 days 30 days 60 days 15 days 90 days 30 days ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering When drainage to sewage ratio is 20, the peak dry weather flow is 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 Slightly more than 5% of the design discharge ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The design period in years for pumping plants, is 1 2 to 3 5 to 10 3 to 5 1 2 to 3 5 to 10 3 to 5 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In a sludge digestion tank if the moisture content of sludge V1 litres is reduced from p1 % to p2 % the volume V2 is [(100 + P2)/(100 – P1)] V1 [(100 + P1)/(100 – P2)] V1 [(100 – P1)/(100 – P2)] V1 [(100 – P1)/(100 + P2)] V1 [(100 + P2)/(100 – P1)] V1 [(100 + P1)/(100 – P2)] V1 [(100 – P1)/(100 – P2)] V1 [(100 – P1)/(100 + P2)] V1 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering To prevent settling down of sewage both at the bottom and on the sides of a large sewer, self-cleaning velocity recommended for Indian conditions, is 0.70 m/sec 0.75 m/sec 0.50 m/sec 0.60 m/sec 0.70 m/sec 0.75 m/sec 0.50 m/sec 0.60 m/sec ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Which one of the following tests is used for testing sewer pipes? Ball test Mirror test Water test All of these Ball test Mirror test Water test All of these ANSWER DOWNLOAD EXAMIANS APP
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