Waste Water Engineering In trickling filter, B.O.D. is reduced to 40 to 60% 30 to 40% 80 to 90% 60 to 80% 40 to 60% 30 to 40% 80 to 90% 60 to 80% ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering As compared to fresh river water, sea water contains oxygen 20% more 10% more 20% less 10% less 20% more 10% more 20% less 10% less ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering A sewer running partially full and hurried with back filled, fails in compression due to Superimposed traffic loads Weight of the back fill All listed here Weight of the pipe Superimposed traffic loads Weight of the back fill All listed here Weight of the pipe ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If the flame of a miner's safety lamp in the upper layers of the sewer forms an explosive, the sewer certainly contains Hydrogen sulphide Carbon dioxide Methane Oxygen Hydrogen sulphide Carbon dioxide Methane Oxygen ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Which of the following pumps in used to pump sewage solids with liquid sewage without clogging the pump is? Pneumatic ejector None of these Reciprocating pump Centrifugal pump Pneumatic ejector None of these Reciprocating pump Centrifugal pump ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For detecting the nitrates in sewage, the colour may be developed by adding Sulphuric acid and napthamine None of these Potassium permanganate Phenol-di -sulphuric acid and potassium hydroxide Sulphuric acid and napthamine None of these Potassium permanganate Phenol-di -sulphuric acid and potassium hydroxide ANSWER DOWNLOAD EXAMIANS APP
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