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 100 mg/l 200 mg/l 400 mg/l 300 mg/l 100 mg/l 200 mg/l 400 mg/l 300 mg/l ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For sewer mains of 0.5 to 1 m diameter, the ratio of maximum daily sewage flow to the average daily sewage flow is assumed 1.5 2 3 2.5 1.5 2 3 2.5 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The normal values of over flow rates for sedimentation tanks using coagulant, ranges between 40,000 to 50,000 litres/sqm/day 25,000 to 35,000 litres/sqm/day 80,000 to 100,000 litres/sqm/day 50,000 to 60,000 litres/sqm/day 40,000 to 50,000 litres/sqm/day 25,000 to 35,000 litres/sqm/day 80,000 to 100,000 litres/sqm/day 50,000 to 60,000 litres/sqm/day ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The rate of accumulation of sludge per person per year, is 10 litres 20 litres 25 litres 15 litres 10 litres 20 litres 25 litres 15 litres ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The maximum diameter of sewers adopted in the designs is 4.0 m 1.0 m 2.0 m 3.0 m 4.0 m 1.0 m 2.0 m 3.0 m ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The sludge does not contain waste water from Toilets Bath rooms Kitchen sinks Wash basins Toilets Bath rooms Kitchen sinks Wash basins ANSWER DOWNLOAD EXAMIANS APP
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