Waste Water Engineering The recommended detention period for grit chambers is 3 minutes 5 minutes 1 minute 2 minutes 3 minutes 5 minutes 1 minute 2 minutes ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The width of a settling tank with 2 hour detention period for treating sewage 378 cu m per hour, is 7 m 5 m 6.5 m 5.5 m 7 m 5 m 6.5 m 5.5 m ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The following is the physical characteristic of sewage Odour Turbidity All listed here Colour Odour Turbidity All listed here Colour ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For design of sewers, percentage of sewage discharge is assumed 0.85 65 to 70% 75 to 80% 70 to 75% 0.85 65 to 70% 75 to 80% 70 to 75% ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The spacing of bars of perforations of fine screens used for the treatment of sewage, is 2 to 3 mm 5 to 8 mm 3 to 5 mm 8 to 10 mm 2 to 3 mm 5 to 8 mm 3 to 5 mm 8 to 10 mm 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
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