Waste Water Engineering In case of Imhoff tanks, The shape is rectangular The velocity of flow is restricted to 0.30 m/minute Detention period is 2 hours All of these The shape is rectangular The velocity of flow is restricted to 0.30 m/minute Detention period is 2 hours All of these ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering It is customary to design a sewer for D.W.F. on the basis of Four times the average demand Twice the average demand Thrice the average demand Average demand Four times the average demand Twice the average demand Thrice the average demand Average demand ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Aerobic activity is maximum At sewer pipes None of these In sewer treatment plants In freshly produced sewage At sewer pipes None of these In sewer treatment plants In freshly produced sewage ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For detecting the nitrates in sewage, the colour may be developed by adding Sulphuric acid and napthamine Phenol-di -sulphuric acid and potassium hydroxide Potassium permanganate None of these Sulphuric acid and napthamine Phenol-di -sulphuric acid and potassium hydroxide Potassium permanganate None of these ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The ratio of maximum sewage flow to average sewage flow for mains up to 1 m in diameter, is 4 1.5 3 2 4 1.5 3 2 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering A safety lamp when inserted in the upper portion of a manhole causes flames. It indicates the presence of Carbondioxide gas Methane gas Hydrogen sulphide gas Petrol vapours Carbondioxide gas Methane gas Hydrogen sulphide gas Petrol vapours ANSWER DOWNLOAD EXAMIANS APP
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