Waste Water Engineering To test chemical oxygen demand (C.O.D.) of sewage, organic matter is oxidised by potassium dichromate in the presence of Citric acid Sulphuric acid Nitric acid Hydrochloric acid Citric acid Sulphuric acid Nitric acid Hydrochloric acid ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The temperature affects the Biological activity of bacteria in sewage Viscosity of sewage Solubility of gases in sewage All of these Biological activity of bacteria in sewage Viscosity of sewage Solubility of gases in sewage All of these ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The presence of free ammonia in sewage, is detected by Adding potassium permanganate Adding sulphuric acid Boiling Phenol-di-sulphuric acid Adding potassium permanganate Adding sulphuric acid Boiling Phenol-di-sulphuric acid ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The grit and silt of the grit chambers, may not be used for Neither A nor B Raising low lying areas by dumping Both A and B Concreting Neither A nor B Raising low lying areas by dumping Both A and B Concreting ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The discharge per unit plan area of a sedimentation tank, is generally called All of these Surface loading Over flow velocity Over flow rate All of these Surface loading Over flow velocity Over flow rate ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering You are asked to design sewer pipes of diameters 0.4 m to 0.9 m at maximum flow, you will assume the sewer flow running at Full depth Three fourth full Two third full Half full Full depth Three fourth full Two third full Half full ANSWER DOWNLOAD EXAMIANS APP
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