Waste Water Engineering For design of sewers, percentage of sewage discharge is assumed 65 to 70% 70 to 75% 0.85 75 to 80% 65 to 70% 70 to 75% 0.85 75 to 80% ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering It is customary to design a sewer for D.W.F. on the basis of Thrice the average demand Average demand Four times the average demand Twice the average demand Thrice the average demand Average demand Four times the average demand Twice the average demand ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The rate of accumulation of sludge in septic tanks is recommended as 30 litres/person/year 25 litres/person/month 30 litres/person/month 25 litres/person/year 30 litres/person/year 25 litres/person/month 30 litres/person/month 25 litres/person/year ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Depletion of ozone layer in the outer atmosphere may cause Bronchitis Skin cancer Lung cancer Heart disorder Bronchitis Skin cancer Lung cancer Heart disorder 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 150 mg/l 50 mg/l 100 mg/l 250 mg/l 150 mg/l 50 mg/l 100 mg/l 250 mg/l ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Dilution method of disposing of sewage, is not preferred to When sewage is fresh When the diluting water is having flow currents When diluting water has high dissolved oxygen content When diluting water is used for water supply near the point of sewage disposed When sewage is fresh When the diluting water is having flow currents When diluting water has high dissolved oxygen content When diluting water is used for water supply near the point of sewage disposed ANSWER DOWNLOAD EXAMIANS APP
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