Waste Water Engineering The sewage treatment units in which anaerobic decomposition of organic matter is used, are called Trickling filters Imhoff tanks Sludge sedimentation tanks None of these Trickling filters Imhoff tanks Sludge sedimentation tanks None of these ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The density of population over 40 hectares is 250/hectare. If water supply demand per day is 200 litres and sewage discharge is 80% of water supply, the sewage flow in sewers of separate system, is 0.05552 cumec 0.0556 cumec 0.05556 cumec 0.05554 cumec 0.05552 cumec 0.0556 cumec 0.05556 cumec 0.05554 cumec ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If is the rugosity coefficient, is the bed slope of sewer, the velocity of flow in m/sec may be obtained by the formula V = (1/n) r2/3 s1/2 evolved by Manning Bazin Kutter Chezy Manning Bazin Kutter Chezy ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering pH value of sludge during alkaline regression stage, is More than 6 Less than 6 More than 7 Less than 7 More than 6 Less than 6 More than 7 Less than 7 ANSWER DOWNLOAD EXAMIANS APP
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 250 ppm 225 ppm 200 ppm None of these 250 ppm 225 ppm 200 ppm ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Sewer manholes are generally provided at The junctions of sewers The change of direction All of these The change of gradient The junctions of sewers The change of direction All of these The change of gradient ANSWER DOWNLOAD EXAMIANS APP
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