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 Sulphuric acid Citric acid Nitric acid Hydrochloric acid Sulphuric acid Citric acid Nitric acid ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The spacing of bars for perforations in coarse screens used for the treatment of sewage, is 30 mm 40 mm 20 mm 50 mm 30 mm 40 mm 20 mm 50 mm ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The ratio of design discharge to the surface area of a sedimentation tank is called Overflow rate All of these Surface loading Overflow velocity Overflow rate All of these Surface loading Overflow velocity ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Dried sewage after treatment is used as Building material Chemical for lowering B.O.D. Fertilizer Base material for paints Building material Chemical for lowering B.O.D. Fertilizer Base material for paints ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The drainage area of a town is 12 hectares. Its 40% area is hard pavement ( K = 0.85), the 40% area is unpaved streets (K = 0.20) and the remaining is wooded areas (K = 0.15). Assuming the time of concentration for the areas as 30 minutes and using the formula Ps = 900/(t + 60) the maximum run off is 0.15 cumec 0.20 cumec 0.10 cumec 0.12 cumec 0.15 cumec 0.20 cumec 0.10 cumec 0.12 cumec ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Which one of the following part of human body withstands minimum radiation? Thyroid Eyes Ovaries/testis Kidneys Thyroid Eyes Ovaries/testis Kidneys ANSWER DOWNLOAD EXAMIANS APP
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