Waste Water Engineering The amount of oxygen consumed by the aerobic bacterias which cause the aerobic biological decomposition of sewage, is known Dissolved Oxygen (D.O.) Chemical Oxygen Demand (C.O.D.) Bio-Chemical Oxygen Demand (B.O.D.) None of these Dissolved Oxygen (D.O.) Chemical Oxygen Demand (C.O.D.) Bio-Chemical Oxygen Demand (B.O.D.) None of these ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If the discharge of a sewer running half is 628 1.p.s., i = 0.001, and n = 0.010, the diameter of the sewer, is 1.39 m 1.59 m 1.49 m 1.69 m 1.39 m 1.59 m 1.49 m 1.69 m ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The layers of vegetable wastes and night soil alternatively piled above the ground to form a mound, is called Windrow A heap None of these Plateau Windrow A heap None of these Plateau ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Sewer ventilating columns are generally placed at Distances 150 m to 300 m All listed here Upper ends of branch sewers Every change in the size of sewers Distances 150 m to 300 m All listed here Upper ends of branch sewers Every change in the size of sewers ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If a paper moistened with lead acetate for five minutes when placed in manhole turns black. The sewer certainly contains Hydrogen sulphide Methane Carbon dioxide Oxygen Hydrogen sulphide Methane Carbon dioxide Oxygen ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The grit chambers of sewage treatment plants, are generally cleaned after 14 days 2 days 12 days 7 days 14 days 2 days 12 days 7 days ANSWER DOWNLOAD EXAMIANS APP
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