Waste Water Engineering The reduced levels of the string at the consecutive sight rails A and B are 203.575 m, 203.475 m respectively. If the difference of their R.D.s is 10 m, the gradient of the sewer line is 1 in 503 upward 1 in 100 downward 1 in 500 upward 1 in 100 upward 1 in 503 upward 1 in 100 downward 1 in 500 upward 1 in 100 upward 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 200 ppm 225 ppm 250 ppm None of these 200 ppm 225 ppm 250 ppm None of these ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering A drop manhole is provided if None of these A branch sewer joins the main sewer at higher level A lamp is inserted to check obstruction A sewer drops from a height None of these A branch sewer joins the main sewer at higher level A lamp is inserted to check obstruction A sewer drops from a height ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Sewer ventilating columns are generally placed at All listed here Upper ends of branch sewers Every change in the size of sewers Distances 150 m to 300 m All listed here Upper ends of branch sewers Every change in the size of sewers Distances 150 m to 300 m ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The quantity of liquid waste which flows in sewers during the period of rainfall, is known Sanitary sewage None of these Storm sewage Industrial waste Sanitary sewage None of these Storm sewage Industrial waste ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering A circular sewer section is preferred to because It provides maximum area for a given perimeter It provides maximum hydraulic mean depth All listed here It is cheaper in construction It provides maximum area for a given perimeter It provides maximum hydraulic mean depth All listed here It is cheaper in construction ANSWER DOWNLOAD EXAMIANS APP
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