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 None of these 225 ppm 200 ppm 250 ppm None of these 225 ppm 200 ppm 250 ppm ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The gradient of sewers depends upon All listed here Discharge Velocity of flow Diameter of the sewer All listed here Discharge Velocity of flow Diameter of the sewer ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The dimensions of a rectangular settling tank are: length 24 m, width 6 m and depth 3 m. If 2 hour detention period for tanks is recommended, the rate of flow of sewage per hour, is 216 cu.m 212 cu.m 204 cu.m 208 cu.m 216 cu.m 212 cu.m 204 cu.m 208 cu.m ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For design of sewers, percentage of sewage discharge is assumed 0.85 70 to 75% 65 to 70% 75 to 80% 0.85 70 to 75% 65 to 70% 75 to 80% ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The flow velocity in detritus tanks is 0.09 m/sec None of these 1.25 m/sec 0.05 m/sec 0.09 m/sec None of these 1.25 m/sec 0.05 m/sec ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For detecting the nitrates in sewage, the colour may be developed by adding Potassium permanganate Sulphuric acid and napthamine Phenol-di -sulphuric acid and potassium hydroxide None of these Potassium permanganate Sulphuric acid and napthamine Phenol-di -sulphuric acid and potassium hydroxide None of these ANSWER DOWNLOAD EXAMIANS APP
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