Waste Water Engineering If is the diameter of upper circular portion, the overall depth of a standard egg shaped section, is 1.75 D 1.5 D 1.25 D 1.15 D 1.75 D 1.5 D 1.25 D 1.15 D ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In a grit chamber of a sewage treatment plant, Depth of 0.9 m to 1.20 m is kept One minute of detention period is kept All of these Flow velocity 0.15 m to 0.3 m/sec is kept Depth of 0.9 m to 1.20 m is kept One minute of detention period is kept All of these Flow velocity 0.15 m to 0.3 m/sec is kept ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For efficient working of a sewer, it must be ensured that Both (A) and (B) Minimum velocity of 0.45 m/sec, is maintained at its minimum flow Neither (A) nor (B) A maximum velocity of 0.90 m/sec, is maintained at its maximum flow Both (A) and (B) Minimum velocity of 0.45 m/sec, is maintained at its minimum flow Neither (A) nor (B) A maximum velocity of 0.90 m/sec, is maintained at its maximum flow ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For the survival of fish in a river stream, the minimum dissolved oxygen is prescribed 10 ppm 3 ppm 4 ppm 5 ppm 10 ppm 3 ppm 4 ppm 5 ppm 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 150 mg/l 100 mg/l 250 mg/l 50 mg/l 150 mg/l 100 mg/l 250 mg/l 50 mg/l ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The effluent of a septic tank is Fit for discharge into any open drain As good as that from a complete treatment Foul and contains dissolved and suspended solids None of these Fit for discharge into any open drain As good as that from a complete treatment Foul and contains dissolved and suspended solids None of these ANSWER DOWNLOAD EXAMIANS APP
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