Waste Water Engineering The spacing of bars for perforations in coarse screens used for the treatment of sewage, is 30 mm 50 mm 20 mm 40 mm 30 mm 50 mm 20 mm 40 mm ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If the depletion of oxygen is found to be 5 ppm after incubating a 2.5% solution of sewage sample for 5 days at 21°C, B.O.D. of the sewage is 150 ppm 50 ppm 200 ppm 100 ppm 150 ppm 50 ppm 200 ppm 100 ppm ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If the diameter of sewer is 225 mm, the gradient required for generating self cleansing velocity, is None of these 1 in 60 1 in 100 1 in 120 None of these 1 in 60 1 in 100 1 in 120 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering A well oxidized sewage contains nitrogen mainly as Free ammonia Nitrites None of these Nitrates Free ammonia Nitrites None of these Nitrates ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The maximum diameter of sewers adopted in the designs is 2.0 m 3.0 m 4.0 m 1.0 m 2.0 m 3.0 m 4.0 m 1.0 m 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 Oxygen Carbon dioxide Methane Hydrogen sulphide Oxygen Carbon dioxide Methane ANSWER DOWNLOAD EXAMIANS APP
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