Waste Water Engineering In trickling filter, B.O.D. is reduced to 80 to 90% 40 to 60% 60 to 80% 30 to 40% 80 to 90% 40 to 60% 60 to 80% 30 to 40% ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For trunk and out-fall, the type of sewers generally used, is Circular shaped Standard egg shaped Horse shoe shaped Parabolic shaped Circular shaped Standard egg shaped Horse shoe shaped Parabolic shaped ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The sewerage system consists of Branch sewer House sewer All of these Lateral sewer Branch sewer House sewer All of these Lateral sewer ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The sewer that unloads the sewage at the point of treatment is called Main sewer House sewer Outfall sewer Branch sewer Main sewer House sewer Outfall sewer Branch sewer ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For detecting the nitrates in sewage, the colour may be developed by adding Potassium permanganate None of these Sulphuric acid and napthamine Phenol-di -sulphuric acid and potassium hydroxide Potassium permanganate None of these Sulphuric acid and napthamine Phenol-di -sulphuric acid and potassium hydroxide ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering 5 days-biochemical oxygen demand (BOD5) is taken at a temperature of 20°C 0°C 25°C 15°C 20°C 0°C 25°C 15°C ANSWER DOWNLOAD EXAMIANS APP
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