Waste Water Engineering For detecting the nitrites in the sewage, the matching colour may be developed by adding Sulphuric acid and napthamine Potassium permanganate None of these Phenol-di -sulphuric acid potassium hydroxide Sulphuric acid and napthamine Potassium permanganate None of these Phenol-di -sulphuric acid potassium hydroxide ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The gas evolved in sewers is Methane Hydrogen sulphide All of these Carbondioxide Methane Hydrogen sulphide All of these Carbondioxide ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The pH value of fresh sewage is usually Less than 7 More than 7 Equal to 7 Equal to zero Less than 7 More than 7 Equal to 7 Equal to zero ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The minimum diameter of a sewer is kept 20 cm 10 cm 15 cm 25 cm 20 cm 10 cm 15 cm 25 cm ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The factor responsible for purification of sewage in river is Dissolved oxygen in water Temperature Hydrology All listed here Dissolved oxygen in water Temperature Hydrology All listed here 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 0.20 cumec 0.10 cumec 0.12 cumec 0.15 cumec 0.20 cumec 0.10 cumec 0.12 cumec 0.15 cumec ANSWER DOWNLOAD EXAMIANS APP
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