Waste Water Engineering Maximum permissible velocity 1.5 m/sec, is adopted in drains Lined with stones With beds of rocks and gravels Both A. and B. Neither A. nor B. Lined with stones With beds of rocks and gravels Both A. and B. Neither A. nor B. ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The width of a rectangular sewer is twice its depth while discharging 1.5 m/sec. The width of the sewer is 1.76 m 1.36 m 0.68 m 0.88 m 1.76 m 1.36 m 0.68 m 0.88 m 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 Citric acid Hydrochloric acid Sulphuric acid Nitric acid Citric acid Hydrochloric acid ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Inter-distance between ventilation columns in a sewer line is kept 50 m to 100 m 25 to 50 m 150 m to 300 m 100 m to 150 m 50 m to 100 m 25 to 50 m 150 m to 300 m 100 m to 150 m ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The presence of free ammonia in sewage, is detected by Phenol-di-sulphuric acid Adding sulphuric acid Adding potassium permanganate Boiling Phenol-di-sulphuric acid Adding sulphuric acid Adding potassium permanganate Boiling ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering At the junction of sewers None of these Top of smaller sewer is kept lower Top of larger sewer is kept lower Tops of both the sewers are at the same level None of these Top of smaller sewer is kept lower Top of larger sewer is kept lower Tops of both the sewers are at the same level ANSWER DOWNLOAD EXAMIANS APP
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