Waste Water Engineering During preliminary treatment of a sewage Girt and sand are removed by girt chambers Floating materials are removed by screening All listed here Oil and grease are removed from skimming tanks Girt and sand are removed by girt chambers Floating materials are removed by screening All listed here Oil and grease are removed from skimming tanks ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In Chezy’s formula V = C rs for calculating the velocity of flow in circular sewer of diameter running full, the value of hydraulic mean radius is D/3 D/2 D/1 D/4 D/3 D/2 D/1 D/4 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 Sulphuric acid Nitric acid Hydrochloric acid Citric acid Sulphuric acid Nitric acid Hydrochloric acid Citric acid ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering A cylindrical ejector having its height 2 m fills after every 10 minutes with a peak sewage discharge of 0.0157 cumec. The diameter of the ejector chamber, is 2.40 m 2.45 m 2.50 m 2.30 m 2.40 m 2.45 m 2.50 m 2.30 m ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If q is the average sewage flow from a city of population P, the maximum sewage flow Q = [(5 + )/((15 + )] q Q = [(18 + )/(4 + )] q Q = [(18 + P)/(4 + )] q Q = [(4 + )/(18 + )] q Q = [(5 + )/((15 + )] q Q = [(18 + )/(4 + )] q Q = [(18 + P)/(4 + )] q Q = [(4 + )/(18 + )] q ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In sewage, the solids in mg per litre is 500 to 1000 100 to 500 1500 to 2000 1000 to 1500 500 to 1000 100 to 500 1500 to 2000 1000 to 1500 ANSWER DOWNLOAD EXAMIANS APP
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