Waste Water Engineering If the peak discharge of a storm water drain (S.W. Drain) is expected to exceed 150 cumecs, the free board to be provided, is 90 cm 100 cm 50 cm 80 cm 90 cm 100 cm 50 cm 80 cm ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Rate of flow of sewage is generally assumed At 150 litres per capita Equal to the rate of water supply Less than the rate of water supply More than the rate of water supply At 150 litres per capita Equal to the rate of water supply Less than the rate of water supply More than the rate of water supply ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The moisture content of sludge is reduced from 90% to 80% in a sludge digestion tank. The percentage decrease in the volume of sludge, is 0.25 0.05 0.5 0.1 0.25 0.05 0.5 0.1 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering To test chemical oxygen demand (C.O.D.) of sewage, organic matter is oxidised by potassium dichromate in the presence of Nitric acid Hydrochloric acid Sulphuric acid Citric acid Nitric acid Hydrochloric acid Sulphuric acid Citric acid ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The effluent of a septic tank is As good as that from a complete treatment None of these Fit for discharge into any open drain Foul and contains dissolved and suspended solids As good as that from a complete treatment None of these Fit for discharge into any open drain Foul and contains dissolved and suspended solids ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The laying of sewers is done with Clinometer Level Theodolite Magnetic compass Clinometer Level Theodolite Magnetic compass ANSWER DOWNLOAD EXAMIANS APP
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