Waste Water Engineering No treatment of the sewage is given if dilution factor is Between 200 to 300 Less than 150 More than 500 Between 150 to 200 Between 200 to 300 Less than 150 More than 500 Between 150 to 200 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For the survival of fish in a river stream, the minimum dissolved oxygen is prescribed 5 ppm 3 ppm 4 ppm 10 ppm 5 ppm 3 ppm 4 ppm 10 ppm ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The sewage treatment units in which anaerobic decomposition of organic matter is used, are called Trickling filters None of these Imhoff tanks Sludge sedimentation tanks Trickling filters None of these Imhoff tanks Sludge sedimentation tanks ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If the flame of a miner’s safety lamp in a manhole extinguishes within 5 minutes, the sewer certainly contains Methane Carbon dioxide Oxygen Hydrogen sulphide Methane Carbon dioxide Oxygen Hydrogen sulphide ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Which one of the following gases is most significant as air pollutant? Nitrogen Oxygen Carbondioxide Sulphur-dioxide Nitrogen Oxygen Carbondioxide Sulphur-dioxide ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The detention time (t) of a settling tank, may be defined as the time required for A particle to travel from top surface to bottom sludge zone The flow of sewage to fill the tank A particle to travel along its length None of these A particle to travel from top surface to bottom sludge zone The flow of sewage to fill the tank A particle to travel along its length None of these ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS