Waste Water Engineering The ratio of maximum sewage flow to average sewage flow for mains up to 1 m in diameter, is 2 1.5 4 3 2 1.5 4 3 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Fresh sewage may become stale in One hour Two to three hours Six hours Three to four hours One hour Two to three hours Six hours Three to four hours ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The settling velocity of the particles larger than 0.06 mm in a settling tank of depth 2.4 is 0.33 m per sec. The detention period recommended for the tank, is 1 hour and 30 minutes 1 hour 2 hours 30 minutes 1 hour and 30 minutes 1 hour 2 hours 30 minutes ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If 2% solution of a sewage sample is incubated for 5 days at 20°C and depletion of oxygen was found to be 5 ppm, B.O.D. of the sewage is 225 ppm 200 ppm None of these 250 ppm 225 ppm 200 ppm None of these 250 ppm ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For design of sewers, percentage of sewage discharge is assumed 75 to 80% 0.85 65 to 70% 70 to 75% 75 to 80% 0.85 65 to 70% 70 to 75% ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If is the rugosity coefficient, is the bed slope of sewer, the velocity of flow in m/sec may be obtained by the formula V = (1/n) r2/3 s1/2 evolved by Chezy Manning Kutter Bazin Chezy Manning Kutter Bazin ANSWER DOWNLOAD EXAMIANS APP
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