Waste Water Engineering If 2% solution of a sewage sample is incubated for 5 days at 20°C and depletion of oxygen was found to be 5 ppm, B.O.D. of the sewage is 250 ppm 225 ppm None of these 200 ppm 250 ppm 225 ppm None of these 200 ppm ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Depletion of ozone layer in the outer atmosphere may cause Bronchitis Skin cancer Lung cancer Heart disorder Bronchitis Skin cancer Lung cancer Heart disorder ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Which of the following pumps in used to pump sewage solids with liquid sewage without clogging the pump is? Centrifugal pump None of these Pneumatic ejector Reciprocating pump Centrifugal pump None of these Pneumatic ejector Reciprocating pump ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For large sewers, maximum distance between manholes may be 50 m 100 m 200 m 300 m 50 m 100 m 200 m 300 m 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 During purification process of sewage the gas given off, is All listed here Hydrogen Ammonia Carbon dioxide All listed here Hydrogen Ammonia Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
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