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 In a city the ratio of the drainage to sewage is 20, the percentage discharge passing through non-monsoon periods, is 10 15 20 5 10 15 20 5 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If the depletion of oxygen is found to be 2.5 mg/litre after incubating 2.5 ml of sewage diluted to 250 ml for 5 days at 20°C, B.O.D. of the sewage is 250 mg/l 150 mg/l 100 mg/l 50 mg/l 250 mg/l 150 mg/l 100 mg/l 50 mg/l ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The formula which accepts the value of rugosity coefficient n = 0.012 to be used in Manning’s formula, is given by Bazin Kutter William-Hazen Crimp and Bruges Bazin Kutter William-Hazen Crimp and Bruges ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The detention period for plain sedimentation water tanks, is usually 4 to 8 hours 16 to 24 hours 8 to 16 hours 24 to 36 hours 4 to 8 hours 16 to 24 hours 8 to 16 hours 24 to 36 hours ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Before discharging the foul sewage into rivers, it is generally treated by Screening Sedimentation Oxidation All listed here Screening Sedimentation Oxidation All listed here ANSWER DOWNLOAD EXAMIANS APP
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