Waste Water Engineering The amount of oxygen consumed by the aerobic bacterias which cause the aerobic biological decomposition of sewage, is known Bio-Chemical Oxygen Demand (B.O.D.) Dissolved Oxygen (D.O.) None of these Chemical Oxygen Demand (C.O.D.) Bio-Chemical Oxygen Demand (B.O.D.) Dissolved Oxygen (D.O.) None of these Chemical Oxygen Demand (C.O.D.) ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Drop manholes at the junctions of sewer lines, are provided if Two sewer lines intersect Ordinary manhole cannot be built Invert level of a branch sewer is more than 60 cm that of the main sewer Sewer line runs along a main road Two sewer lines intersect Ordinary manhole cannot be built Invert level of a branch sewer is more than 60 cm that of the main sewer Sewer line runs along a main road ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Hume steel pipes are Both B and C Steel pipes Steel shell coated from inside with cement mortar Steel shell coated from outside with cement mortar Both B and C Steel pipes Steel shell coated from inside with cement mortar Steel shell coated from outside with cement mortar ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering A nuisance is experienced in diluting water if dilution factor is less than 60 100 40 20 60 100 40 20 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For efficient working of a sewer, it must be ensured that Minimum velocity of 0.45 m/sec, is maintained at its minimum flow Neither (A) nor (B) Both (A) and (B) A maximum velocity of 0.90 m/sec, is maintained at its maximum flow Minimum velocity of 0.45 m/sec, is maintained at its minimum flow Neither (A) nor (B) Both (A) and (B) A maximum velocity of 0.90 m/sec, is maintained at its maximum flow ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The most efficient cross-section of sewers in a combined sewerage system is New egged Circular Parabolic Rectangular New egged Circular Parabolic Rectangular ANSWER DOWNLOAD EXAMIANS APP
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