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 250 mg/l 100 mg/l 50 mg/l 150 mg/l 250 mg/l 100 mg/l 50 mg/l ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The rate of accumulation of sludge per person per year, is 25 litres 15 litres 10 litres 20 litres 25 litres 15 litres 10 litres 20 litres ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The sewer pipe which carries sewage from a building for immediate disposal is House sewer Intercepting sewer Main sewer Lateral sewer House sewer Intercepting sewer Main sewer Lateral sewer ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Which one of the following gases is most significant as air pollutant? Nitrogen Carbondioxide Sulphur-dioxide Oxygen Nitrogen Carbondioxide Sulphur-dioxide Oxygen ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering depends upon The Chezy’s constant C in the formula V = C Shape of the sewer Roughness of sewer surface All listed here Size of the sewer Shape of the sewer Roughness of sewer surface All listed here Size of the sewer ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The digested sludge from septic tanks, is removed after a maximum period of 4 years 5 years 3 years 3.5 years 4 years 5 years 3 years 3.5 years ANSWER DOWNLOAD EXAMIANS APP
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