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 None of these 200 ppm 225 ppm 250 ppm None of these 200 ppm 225 ppm 250 ppm ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The average temperature of sewage in India, is 25°C 20°C 15°C 10°C 25°C 20°C 15°C 10°C ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Which of the following pumps in used to pump sewage solids with liquid sewage without clogging the pump is? Pneumatic ejector Reciprocating pump Centrifugal pump None of these Pneumatic ejector Reciprocating pump Centrifugal pump None of these ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The screens are fixed Parallel to the direction of flow None of these At an angle 30° to 60° to the direction of flow Perpendicular to the direction of flow Parallel to the direction of flow None of these At an angle 30° to 60° to the direction of flow Perpendicular to the direction of flow ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The drop man holes are generally provided in sewers for Cities in plains Large town ships Industrial areas Hilly town ships Cities in plains Large town ships Industrial areas Hilly town ships ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Fresh sewage may become stale in Three to four hours Six hours One hour Two to three hours Three to four hours Six hours One hour Two to three hours ANSWER DOWNLOAD EXAMIANS APP
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