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.) Chemical Oxygen Demand (C.O.D.) None of these Bio-Chemical Oxygen Demand (B.O.D.) Dissolved Oxygen (D.O.) Chemical Oxygen Demand (C.O.D.) None of these ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Sewer ventilating columns are generally placed at Every change in the size of sewers Upper ends of branch sewers Distances 150 m to 300 m All listed here Every change in the size of sewers Upper ends of branch sewers Distances 150 m to 300 m All listed here ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For non-scouring velocity 5 m/sec, the type of sewers generally preferred to, is Cement concrete sewers Cast iron sewers Glazed bricks sewers Stone ware sewers Cement concrete sewers Cast iron sewers Glazed bricks sewers Stone ware sewers ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering pH value of sludge during alkaline regression stage, is More than 7 More than 6 Less than 6 Less than 7 More than 7 More than 6 Less than 6 Less than 7 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The suitable cross-section of sewers to carry combined flow, is Circular Horse shoe shaped Rectangular Egg shaped Circular Horse shoe shaped Rectangular Egg shaped ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For treating the sewage of a large city, you will recommend A plant consisting of Imhoff tanks with low rate trickling filters Sedimentation tanks with high rate trickling filters A sedimentation tank and an activated sludge treatment plant None of these A plant consisting of Imhoff tanks with low rate trickling filters Sedimentation tanks with high rate trickling filters A sedimentation tank and an activated sludge treatment plant None of these ANSWER DOWNLOAD EXAMIANS APP
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