Waste Water Engineering The amount of oxygen consumed by the aerobic bacterias which cause the aerobic biological decomposition of sewage, is known Chemical Oxygen Demand (C.O.D.) Bio-Chemical Oxygen Demand (B.O.D.) Dissolved Oxygen (D.O.) None of these Chemical Oxygen Demand (C.O.D.) Bio-Chemical Oxygen Demand (B.O.D.) Dissolved Oxygen (D.O.) None of these ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For laying a sewer line in a trench of 2 m width, an offset line is marked on the ground parallel to the given centre line at a distance of 100 cm 140 cm 120 cm 160 cm 100 cm 140 cm 120 cm 160 cm ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If the diameter of a sewer is 100 mm, the gradient required for generating self cleansing velocity is 1 in 100 None of these 1 in 60 1 in 120 1 in 100 None of these 1 in 60 1 in 120 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Bio-chemical oxygen demand (BOD) for the first 20 days in generally referred to Carbonaceous demand First stage demand Initial demand All of these Carbonaceous demand First stage demand Initial demand All of these ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For the survival of fish in a river stream, the minimum dissolved oxygen is prescribed 3 ppm 10 ppm 4 ppm 5 ppm 3 ppm 10 ppm 4 ppm 5 ppm ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The asbestos cement pipes are generally laid At an angle of 60° Horizontally At an angle of 30° Vertically At an angle of 60° Horizontally At an angle of 30° Vertically ANSWER DOWNLOAD EXAMIANS APP
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