Waste Water Engineering If the pH value of sewage is 7 It is alkaline It is acidic It is neutral None of these It is alkaline It is acidic It is neutral None of these ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If a 2% solution of sewage sample is incubated for 5 days at 20°C and the dissolved oxygen depletion was found to be 8 mg/l. The BOD of the sewage is 200 mg/l 400 mg/l 100 mg/l 300 mg/l 200 mg/l 400 mg/l 100 mg/l 300 mg/l ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For the survival of fish in a river stream, the minimum dissolved oxygen is prescribed 10 ppm 3 ppm 5 ppm 4 ppm 10 ppm 3 ppm 5 ppm 4 ppm ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For design purposes, the normal rate of infiltration of ground water into the sewer, is 2000 litres/km/cm 1000 litres/km/cm 1500 litres/km/cm 500 litres/km/cm 2000 litres/km/cm 1000 litres/km/cm 1500 litres/km/cm 500 litres/km/cm ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The presence of free ammonia in sewage, is detected by Boiling Adding sulphuric acid Adding potassium permanganate Phenol-di-sulphuric acid Boiling Adding sulphuric acid Adding potassium permanganate Phenol-di-sulphuric acid ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In detritus tanks, Flow velocity is kept 0.09 m/sec All listed here Detention period is kept 3 to 4 minutes Organic and inorganic materials are separated Flow velocity is kept 0.09 m/sec All listed here Detention period is kept 3 to 4 minutes Organic and inorganic materials are separated ANSWER DOWNLOAD EXAMIANS APP
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