Waste Water Engineering For the survival of fish in a river stream, the minimum dissolved oxygen is prescribed 3 ppm 10 ppm 5 ppm 4 ppm 3 ppm 10 ppm 5 ppm 4 ppm 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 Nitric acid Sulphuric acid Hydrochloric acid Citric acid Nitric acid Sulphuric acid Hydrochloric acid ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In areas where rainy season is limited to a few months, the type of sewerage system recommended is None of these Separate system Combined system Partially separate system None of these Separate system Combined system Partially separate system ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering A circular sewer section is preferred to because It is cheaper in construction All listed here It provides maximum area for a given perimeter It provides maximum hydraulic mean depth It is cheaper in construction All listed here It provides maximum area for a given perimeter It provides maximum hydraulic mean depth ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In a sludge tank, the gas mainly produced, is Carbon dioxide Oxygen Nitrogen Hydrogen Carbon dioxide Oxygen Nitrogen Hydrogen ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In sewage having fully oxidised organic matter, the nitrogen exists in the form of Nitrates Aluminoid nitrogen Free ammonia Nitrites Nitrates Aluminoid nitrogen Free ammonia Nitrites ANSWER DOWNLOAD EXAMIANS APP
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