Waste Water Engineering In detritus tanks, Detention period is kept 3 to 4 minutes Organic and inorganic materials are separated Flow velocity is kept 0.09 m/sec All listed here Detention period is kept 3 to 4 minutes Organic and inorganic materials are separated Flow velocity is kept 0.09 m/sec All listed here ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The gas evolved in sewers is Hydrogen sulphide Methane All of these Carbondioxide Hydrogen sulphide Methane All of these Carbondioxide ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If D.O. concentration falls down to zero in any natural drainage, it indicates the zone of Cleaner water Recovery Degradation Active decomposition Cleaner water Recovery Degradation Active decomposition ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Depletion of ozone layer in the outer atmosphere may cause Lung cancer Bronchitis Skin cancer Heart disorder Lung cancer Bronchitis Skin cancer Heart disorder ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The detention time of a circular tank of diameter d and water depth H, for receiving the sewage Q per hour, is d² (0.011d + 0.785H)/Q d (0.285d + 0.011H)/Q d (0.785d + 0.011H)/Q d (0.022d + 0.085H)/Q d² (0.011d + 0.785H)/Q d (0.285d + 0.011H)/Q d (0.785d + 0.011H)/Q d (0.022d + 0.085H)/Q ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The rate of accumulation of sludge in septic tanks is recommended as 25 litres/person/year 30 litres/person/year 30 litres/person/month 25 litres/person/month 25 litres/person/year 30 litres/person/year 30 litres/person/month 25 litres/person/month ANSWER DOWNLOAD EXAMIANS APP
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