Waste Water Engineering For estimating the peak run off the rational formula Q = 0.0278 KpA was evolved by All listed here Lloyd Davis Frubling Kinchling All listed here Lloyd Davis Frubling Kinchling ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The normal values of over flow rates for secondary sedimentation tanks, ranges between 25,000 to 35,000 litres/sqm/day 80,000 to 10,000 litres/sqm/day 50,000 to 60,000 litres/sqm/day 40,000 to 50,000 litres/sqm/day 25,000 to 35,000 litres/sqm/day 80,000 to 10,000 litres/sqm/day 50,000 to 60,000 litres/sqm/day 40,000 to 50,000 litres/sqm/day ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If the flame of a miner’s safety lamp in a manhole extinguishes within 5 minutes, the sewer certainly contains Oxygen Carbon dioxide Methane Hydrogen sulphide Oxygen Carbon dioxide Methane Hydrogen sulphide ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If 2% solution of a sewage sample is incubated for 5 days at 20°C and depletion of oxygen was found to be 5 ppm, B.O.D. of the sewage is 250 ppm 225 ppm None of these 200 ppm 250 ppm 225 ppm None of these 200 ppm ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering To test chemical oxygen demand (C.O.D.) of sewage, organic matter is oxidised by potassium dichromate in the presence of Citric acid Sulphuric acid Nitric acid Hydrochloric acid Citric acid Sulphuric acid Nitric acid Hydrochloric acid ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In trickling filter, B.O.D. is reduced to 80 to 90% 30 to 40% 40 to 60% 60 to 80% 80 to 90% 30 to 40% 40 to 60% 60 to 80% ANSWER DOWNLOAD EXAMIANS APP
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