Waste Water Engineering If D.O. concentration falls down to zero in any natural drainage, it indicates the zone of Cleaner water Degradation Active decomposition Recovery Cleaner water Degradation Active decomposition Recovery ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The first stage of neutral process of sludge digestion, is None of these Alkaline fermentation Acid regression Acid fermentation None of these Alkaline fermentation Acid regression Acid fermentation ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Sewer manholes are generally provided at The junctions of sewers The change of direction The change of gradient All of these The junctions of sewers The change of direction The change of gradient All of these ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The angle subtended by the surface of sewer water with partial flow, at sewer centre is 120°, the depth of sewerage is 20 cm 50 cm 25 cm 40 cm 20 cm 50 cm 25 cm 40 cm ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The liquid wastes from kitchens, bath rooms and wash basins, is not called Sullage Sewage Liquid waste None of these Sullage Sewage Liquid waste None of these ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering To test chemical oxygen demand (C.O.D.) of sewage, organic matter is oxidised by potassium dichromate in the presence of Hydrochloric acid Nitric acid Citric acid Sulphuric acid Hydrochloric acid Nitric acid Citric acid Sulphuric acid ANSWER DOWNLOAD EXAMIANS APP
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