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 300 mg/l 100 mg/l 400 mg/l 200 mg/l 300 mg/l 100 mg/l 400 mg/l ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If q is the average sewage flow from a city of population P, the maximum sewage flow Q = [(4 + )/(18 + )] q Q = [(5 + )/((15 + )] q Q = [(18 + P)/(4 + )] q Q = [(18 + )/(4 + )] q Q = [(4 + )/(18 + )] q Q = [(5 + )/((15 + )] q Q = [(18 + P)/(4 + )] q Q = [(18 + )/(4 + )] q 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 sewage is fresh When the diluting water is having flow currents When diluting water is used for water supply near the point of sewage disposed When diluting water has high dissolved oxygen content When sewage is fresh When the diluting water is having flow currents When diluting water is used for water supply near the point of sewage disposed ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The design period in years for pumping plants, is 5 to 10 2 to 3 3 to 5 1 5 to 10 2 to 3 3 to 5 1 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The amount of oxygen consumed by the aerobic bacterias which cause the aerobic biological decomposition of sewage, is known Dissolved Oxygen (D.O.) None of these Chemical Oxygen Demand (C.O.D.) Bio-Chemical Oxygen Demand (B.O.D.) Dissolved Oxygen (D.O.) None of these Chemical Oxygen Demand (C.O.D.) Bio-Chemical Oxygen Demand (B.O.D.) ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering You are asked to design sewer pipes of diameters 0.4 m to 0.9 m at maximum flow, you will assume the sewer flow running at Full depth Two third full Three fourth full Half full Full depth Two third full Three fourth full Half full ANSWER DOWNLOAD EXAMIANS APP
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