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 None of these 200 ppm 225 ppm 250 ppm None of these 200 ppm 225 ppm ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The minimum recommended diameter of sewers, is 10 cm 15 cm 20 cm 5 cm 10 cm 15 cm 20 cm 5 cm ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The detention period for plain sedimentation water tanks, is usually 4 to 8 hours 8 to 16 hours 16 to 24 hours 24 to 36 hours 4 to 8 hours 8 to 16 hours 16 to 24 hours 24 to 36 hours ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The most efficient cross section of sewers in a separate sewerage system is New egged Circular Rectangular Parabolic New egged Circular Rectangular Parabolic ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Nitrogen cycle of sewage, is Formation of nitrates-formation of nitrites-liberation of nitrates-liberation of nitrates Liberation of nitrogen-liberation of ammonia-formation of nitrites- formation of nitrates Liberation of ammonia-formation of nitrites-formation of nitrates-liberation of nitrogen Liberation of nitrogen-formation of nitrates-formation of nitrites-liberation of ammonia Formation of nitrates-formation of nitrites-liberation of nitrates-liberation of nitrates Liberation of nitrogen-liberation of ammonia-formation of nitrites- formation of nitrates Liberation of ammonia-formation of nitrites-formation of nitrates-liberation of nitrogen Liberation of nitrogen-formation of nitrates-formation of nitrites-liberation of ammonia 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
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