Waste Water Engineering For design of sewers, percentage of sewage discharge is assumed 75 to 80% 65 to 70% 0.85 70 to 75% 75 to 80% 65 to 70% 0.85 70 to 75% ANSWER DOWNLOAD EXAMIANS APP
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.) None of these Chemical Oxygen Demand (C.O.D.) Dissolved Oxygen (D.O.) Bio-Chemical Oxygen Demand (B.O.D.) None of these Chemical Oxygen Demand (C.O.D.) Dissolved Oxygen (D.O.) ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Depletion of ozone layer in the outer atmosphere may cause Skin cancer Heart disorder Lung cancer Bronchitis Skin cancer Heart disorder Lung cancer Bronchitis ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The sewage discharge in a detritus tank of a treatment plant is 576 litres/sec with flow velocity of 0.2 m/sec. If the ratio of width to depth is 2, the depth is 100 cm 120 cm 110 cm 150 cm 100 cm 120 cm 110 cm 150 cm ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering A circular sewer section is preferred to because 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 It provides maximum hydraulic mean depth It is cheaper in construction It provides maximum area for a given perimeter ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For providing an Indian type W.C., the R.C.C. slabs in the toilet portion Need not be sunk Should be sunk by 20 cm Should be sunk by 50 cm Should be kept 20 cm above the adjacent portion Need not be sunk Should be sunk by 20 cm Should be sunk by 50 cm Should be kept 20 cm above the adjacent portion ANSWER DOWNLOAD EXAMIANS APP
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