Waste Water Engineering For providing an Indian type W.C., the R.C.C. slabs in the toilet portion Should be sunk by 20 cm Should be sunk by 50 cm Should be kept 20 cm above the adjacent portion Need not be sunk Should be sunk by 20 cm Should be sunk by 50 cm Should be kept 20 cm above the adjacent portion Need not be sunk ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For trunk and out-fall, the type of sewers generally used, is Horse shoe shaped Parabolic shaped Standard egg shaped Circular shaped Horse shoe shaped Parabolic shaped Standard egg shaped Circular shaped ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If D is the diameter of a circular sewer and D’ is the top horizontal diameter of an equivalent egg shaped section, the relationship which holds good, is D’ = 0.94 D D’ = 0.74 D D’ = 0.84 D D’ = 0.64 D D’ = 0.94 D D’ = 0.74 D D’ = 0.84 D D’ = 0.64 D 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
Waste Water Engineering Acid regression stage of sludge digestion at a temperature 21°C extends over a period of 60 days 90 days 15 days 30 days 60 days 90 days 15 days 30 days ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In primary sedimentation, the 0.2 mm inorganic solids get separated if specific gravity is 2.65 2.25 2.5 2.55 2.65 2.25 2.5 2.55 ANSWER DOWNLOAD EXAMIANS APP
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