Waste Water Engineering No treatment of the sewage is given if dilution factor is More than 500 Between 150 to 200 Less than 150 Between 200 to 300 More than 500 Between 150 to 200 Less than 150 Between 200 to 300 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 All of these Flow velocity 0.15 m to 0.3 m/sec is kept One minute of detention period is kept Depth of 0.9 m to 1.20 m is kept All of these Flow velocity 0.15 m to 0.3 m/sec is kept One minute of detention period is kept ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Antisyphonage pipe is fitted At the beginning of sewer line On manholes With a W.'trap At the end of septic tanks At the beginning of sewer line On manholes With a W.'trap At the end of septic tanks ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The pH value of fresh sewage is usually Less than 7 Equal to zero Equal to 7 More than 7 Less than 7 Equal to zero Equal to 7 More than 7 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If a 2% solution of sewage sample is incubated for 5 days at 20°C and the dissolved oxygen depletion was found to be 8 mg/l. The BOD of the sewage is 200 mg/l 100 mg/l 400 mg/l 300 mg/l 200 mg/l 100 mg/l 400 mg/l 300 mg/l ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For trunk sewers more than 1.25 m in diameter, the ratio of the maximum daily sewage flow to the average daily sewage flow is assumed 2 1.5 3 2.5 2 1.5 3 2.5 ANSWER DOWNLOAD EXAMIANS APP