Waste Water Engineering A sewer pipe contains 1 mm sand particles of specific gravity 2.65 and 5 mm organic particles of specific gravity 1.2, the minimum velocity required for removing the sewerage, is 0.45 m/sec 0.30 m/sec 0.40 m/sec 0.35 m/sec 0.45 m/sec 0.30 m/sec 0.40 m/sec 0.35 m/sec ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Sewer ventilating columns are generally placed at Every change in the size of sewers All listed here Distances 150 m to 300 m Upper ends of branch sewers Every change in the size of sewers All listed here Distances 150 m to 300 m Upper ends of branch sewers ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In detritus tanks, Organic and inorganic materials are separated Flow velocity is kept 0.09 m/sec All listed here Detention period is kept 3 to 4 minutes Organic and inorganic materials are separated Flow velocity is kept 0.09 m/sec All listed here Detention period is kept 3 to 4 minutes ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The most widely used pump for lifting sewage is Air pressure pump Pneumatic ejector Reciprocating pump Centrifugal pump Air pressure pump Pneumatic ejector Reciprocating pump Centrifugal pump ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The porosity of sediments in sewer pipes, is usually taken as 0.012 0.011 0.013 0.01 0.012 0.011 0.013 0.01 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 300 mg/l 200 mg/l 400 mg/l 100 mg/l 300 mg/l 200 mg/l 400 mg/l 100 mg/l ANSWER DOWNLOAD EXAMIANS APP
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