Waste Water Engineering If the pH value of sewage is 7 None of these It is acidic It is alkaline It is neutral None of these It is acidic It is alkaline It is neutral ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering During preliminary treatment of a sewage Floating materials are removed by screening Oil and grease are removed from skimming tanks All listed here Girt and sand are removed by girt chambers Floating materials are removed by screening Oil and grease are removed from skimming tanks All listed here Girt and sand are removed by girt chambers ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If the diameter of a sewer is 100 mm, the gradient required for generating self cleansing velocity is 1 in 120 None of these 1 in 60 1 in 100 1 in 120 None of these 1 in 60 1 in 100 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Bottom openings 15 cm × 15 cm in the standing baffle wall are provided 30 cm c/c 22.5 cm c/c 15 cm c/c 50 cm c/c 30 cm c/c 22.5 cm c/c 15 cm c/c 50 cm c/c 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 Citric acid Hydrochloric acid Sulphuric acid Nitric acid Citric acid Hydrochloric acid Sulphuric acid Nitric acid ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The detention period for plain sedimentation water tanks, is usually 4 to 8 hours 24 to 36 hours 8 to 16 hours 16 to 24 hours 4 to 8 hours 24 to 36 hours 8 to 16 hours 16 to 24 hours ANSWER DOWNLOAD EXAMIANS APP
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