Waste Water Engineering The coagulant which is generally not used for treating the sewage, is Chlorinated coppers Ferric chloride Ferric sulphate Alum Chlorinated coppers Ferric chloride Ferric sulphate Alum ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Sewer manholes are generally provided at The junctions of sewers The change of direction All of these The change of gradient The junctions of sewers The change of direction All of these The change of gradient 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 The first stage of neutral process of sludge digestion, is Acid fermentation None of these Alkaline fermentation Acid regression Acid fermentation None of these Alkaline fermentation Acid regression ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In sewage having fully oxidised organic matter, the nitrogen exists in the form of Aluminoid nitrogen Free ammonia Nitrates Nitrites Aluminoid nitrogen Free ammonia Nitrates Nitrites ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The most efficient cross-section of sewers in a combined sewerage system is Rectangular Circular New egged Parabolic Rectangular Circular New egged Parabolic ANSWER DOWNLOAD EXAMIANS APP
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