Waste Water Engineering Which one of the following tests is used for testing sewer pipes? Water test All of these Mirror test Ball test Water test All of these Mirror test Ball test ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Large diameter sewers subjected to external pressure alone, are reinforced Near the outer surface of the pipe With elliptical cage Near the inner surface of the pipe Both A and B Near the outer surface of the pipe With elliptical cage Near the inner surface of the pipe Both A and B 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 Phenol-di -sulphuric acid and potassium hydroxide Sulphuric acid and napthamine Potassium permanganate None of these Phenol-di -sulphuric acid and potassium hydroxide Sulphuric acid and napthamine ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If 2% solution of a sewage sample is incubated for 5 days at 20°C and depletion of oxygen was found to be 5 ppm, B.O.D. of the sewage is 250 ppm 225 ppm 200 ppm None of these 250 ppm 225 ppm 200 ppm None of these ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For detecting the nitrites in the sewage, the matching colour may be developed by adding Potassium permanganate Phenol-di -sulphuric acid potassium hydroxide Sulphuric acid and napthamine None of these Potassium permanganate Phenol-di -sulphuric acid potassium hydroxide Sulphuric acid and napthamine None of these ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In sewage having fully oxidised organic matter, the nitrogen exists in the form of Nitrites Free ammonia Aluminoid nitrogen Nitrates Nitrites Free ammonia Aluminoid nitrogen Nitrates ANSWER DOWNLOAD EXAMIANS APP
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