Waste Water Engineering Traps Are used to trap the rats entering sewers Are water seals which prevent the entry of foul gases Create symphonic action to increase the quick disposal of sewerage Dissolve the foul gases Are used to trap the rats entering sewers Are water seals which prevent the entry of foul gases Create symphonic action to increase the quick disposal of sewerage Dissolve the foul gases ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The digested sludge from septic tanks, is removed after a maximum period of 5 years 4 years 3.5 years 3 years 5 years 4 years 3.5 years 3 years ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The gas evolved in sewers is Carbondioxide Methane All of these Hydrogen sulphide Carbondioxide Methane All of these Hydrogen sulphide ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The most dangerous pollutant in vehicular emissions is CO₂ O₂ CO₂ SO₂ CO₂ O₂ CO₂ SO₂ 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 0.05554 cumec 0.0556 cumec 0.05552 cumec 0.05556 cumec 0.05554 cumec 0.0556 cumec 0.05552 cumec 0.05556 cumec ANSWER DOWNLOAD EXAMIANS APP
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 400 mg/l 200 mg/l 100 mg/l 300 mg/l 400 mg/l 200 mg/l 100 mg/l 300 mg/l ANSWER DOWNLOAD EXAMIANS APP
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