Waste Water Engineering The grit chambers of sewage treatment plants, are generally cleaned after 2 days 12 days 14 days 7 days 2 days 12 days 14 days 7 days ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For detecting the nitrates in sewage, the colour may be developed by adding None of these Sulphuric acid and napthamine Potassium permanganate Phenol-di -sulphuric acid and potassium hydroxide None of these Sulphuric acid and napthamine Potassium permanganate Phenol-di -sulphuric acid and potassium hydroxide ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Dried sewage after treatment is used as Fertilizer Building material Chemical for lowering B.O.D. Base material for paints Fertilizer Building material Chemical for lowering B.O.D. Base material for paints ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The stone ware sewers Are used for carrying sewage and drainage from houses All listed here Are manufactured from clays and shale After casting are dried and burnt at temperature 150°C, 700°C and 1200°C Are used for carrying sewage and drainage from houses All listed here Are manufactured from clays and shale After casting are dried and burnt at temperature 150°C, 700°C and 1200°C ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If the depletion of oxygen is found to be 2.5 mg/litre after incubating 2.5 ml of sewage diluted to 250 ml for 5 days at 20°C, B.O.D. of the sewage is 50 mg/l 100 mg/l 250 mg/l 150 mg/l 50 mg/l 100 mg/l 250 mg/l 150 mg/l ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering It is customary to design a sewer for D.W.F. on the basis of Twice the average demand Four times the average demand Average demand Thrice the average demand Twice the average demand Four times the average demand Average demand Thrice the average demand ANSWER DOWNLOAD EXAMIANS APP
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