Waste Water Engineering The flow velocity in detritus tanks is None of these 0.09 m/sec 0.05 m/sec 1.25 m/sec None of these 0.09 m/sec 0.05 m/sec 1.25 m/sec ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Skimming tanks are Improved version of grit chambers Tanks provided with self- cleansing screens Those from which sludge is skimmed out Used to remove the grease and oil Improved version of grit chambers Tanks provided with self- cleansing screens Those from which sludge is skimmed out Used to remove the grease and oil ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering 3.0 ml of raw sewage is diluted to 300 ml. The D.O. concentration of the diluted sample at the beginning of the test was 8 mg/l. After 5 day-incubation at 20°C, the D.O. concentration was 5 mg/l. The BOD of raw sewerage is 300 mg/l 400 mg/l 100 mg/l 200 mg/l 300 mg/l 400 mg/l 100 mg/l 200 mg/l ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In trickling filter, B.O.D. is reduced to 40 to 60% 60 to 80% 80 to 90% 30 to 40% 40 to 60% 60 to 80% 80 to 90% 30 to 40% ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If the diameter of a sewer is 100 mm, the gradient required for generating self cleansing velocity is None of these 1 in 100 1 in 120 1 in 60 None of these 1 in 100 1 in 120 1 in 60 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Dilution method of disposing of sewage, is not preferred to When diluting water has high dissolved oxygen content When the diluting water is having flow currents When diluting water is used for water supply near the point of sewage disposed When sewage is fresh When diluting water has high dissolved oxygen content When the diluting water is having flow currents When diluting water is used for water supply near the point of sewage disposed When sewage is fresh ANSWER DOWNLOAD EXAMIANS APP
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