Waste Water Engineering If the over land flow from the critical point to the drain is 8 km and the difference in level is 12.4 m, the inlet time is 4 hours 2 hours 5 hours 3 hours 4 hours 2 hours 5 hours 3 hours 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 All listed here It provides maximum area for a given perimeter It provides maximum hydraulic mean depth It is cheaper in construction All listed here It provides maximum area for a given perimeter ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For large sewers, maximum distance between manholes may be 200 m 300 m 100 m 50 m 200 m 300 m 100 m 50 m ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Aerobic bacterias Flourish in the presence of free oxygen Oxidise organic matter in sewage Consume organic matter as their food All of these Flourish in the presence of free oxygen Oxidise organic matter in sewage Consume organic matter as their food All of these ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In a sludge digestion tank if the moisture content of sludge V1 litres is reduced from p1 % to p2 % the volume V2 is [(100 – P1)/(100 + P2)] V1 [(100 – P1)/(100 – P2)] V1 [(100 + P2)/(100 – P1)] V1 [(100 + P1)/(100 – P2)] V1 [(100 – P1)/(100 + P2)] V1 [(100 – P1)/(100 – P2)] V1 [(100 + P2)/(100 – P1)] V1 [(100 + P1)/(100 – P2)] V1 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering During preliminary treatment of a sewage Floating materials are removed by screening All listed here Oil and grease are removed from skimming tanks Girt and sand are removed by girt chambers Floating materials are removed by screening All listed here Oil and grease are removed from skimming tanks Girt and sand are removed by girt chambers ANSWER DOWNLOAD EXAMIANS APP
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