Waste Water Engineering Drop manholes at the junctions of sewer lines, are provided if Two sewer lines intersect Sewer line runs along a main road Ordinary manhole cannot be built Invert level of a branch sewer is more than 60 cm that of the main sewer Two sewer lines intersect Sewer line runs along a main road Ordinary manhole cannot be built Invert level of a branch sewer is more than 60 cm that of the main sewer ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For trunk and out-fall, the type of sewers generally used, is Parabolic shaped Horse shoe shaped Circular shaped Standard egg shaped Parabolic shaped Horse shoe shaped Circular shaped Standard egg shaped ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Hazen’s formula VS = 418 (GS – Gw)d [(3T + 70)/100] is used for the settlement velocity of the particles of diameter Greater than 0.1 mm Less than 0.1 mm Less than 0.01 mm Less than 0.05 mm Greater than 0.1 mm Less than 0.1 mm Less than 0.01 mm Less than 0.05 mm ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Ventilating shafts are provided to a sewer line at every 300 m 150 m 200 m 100 m 300 m 150 m 200 m 100 m ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering A rain sanitary sewer is constructed to carry Storm sewage Surface water Ground water Sanitary sewage Storm sewage Surface water Ground water Sanitary sewage ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If D.O. concentration falls down to zero in any natural drainage, it indicates the zone of Degradation Active decomposition Cleaner water Recovery Degradation Active decomposition Cleaner water Recovery ANSWER DOWNLOAD EXAMIANS APP
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