Waste Water Engineering In a grit chamber of a sewage treatment plant, Depth of 0.9 m to 1.20 m is kept Flow velocity 0.15 m to 0.3 m/sec is kept All of these One minute of detention period is kept Depth of 0.9 m to 1.20 m is kept Flow velocity 0.15 m to 0.3 m/sec is kept All of these One minute of detention period is kept ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering A nuisance is experienced in diluting water if dilution factor is less than 60 100 20 40 60 100 20 40 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Imhoff cone is used to determine Suspended solids None of these Dissolved solids Settleable solids Suspended solids None of these Dissolved solids Settleable solids ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering A circular sewer section is preferred to because It provides maximum hydraulic mean depth It is cheaper in construction It provides maximum area for a given perimeter All listed here It provides maximum hydraulic mean depth It is cheaper in construction It provides maximum area for a given perimeter All listed here ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If the depletion of oxygen is found to be 2.5 mg/litre after incubating 2.5 ml of sewage diluted to 250 ml for 5 days at 20°C, B.O.D. of the sewage is 150 mg/l 100 mg/l 250 mg/l 50 mg/l 150 mg/l 100 mg/l 250 mg/l 50 mg/l ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The self-cleansing velocity of water flowing through pipe lines, is 2 metres/sec 0.5 metre/sec 0.25 metre/sec 1 metre/sec 2 metres/sec 0.5 metre/sec 0.25 metre/sec 1 metre/sec ANSWER DOWNLOAD EXAMIANS APP
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