Waste Water Engineering Bio-chemical oxygen demand (BOD) for the first 20 days in generally referred to First stage demand Initial demand Carbonaceous demand All of these First stage demand Initial demand Carbonaceous demand All of these ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In case of sewer lines Obstruction test is carried out with the help of smooth ball of diameter 13 mm Test for straightness is carried out with the help of a lamp and mirror All listed here Water test is carried out to check water tightness of the joints Obstruction test is carried out with the help of smooth ball of diameter 13 mm Test for straightness is carried out with the help of a lamp and mirror All listed here Water test is carried out to check water tightness of the joints ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering A nuisance is experienced in diluting water if dilution factor is less than 60 40 100 20 60 40 100 20 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The recommended detention period for grit chambers is 2 minutes 5 minutes 3 minutes 1 minute 2 minutes 5 minutes 3 minutes 1 minute ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For detecting the nitrites in the sewage, the matching colour may be developed by adding Sulphuric acid and napthamine Potassium permanganate Phenol-di -sulphuric acid potassium hydroxide None of these Sulphuric acid and napthamine Potassium permanganate Phenol-di -sulphuric acid potassium hydroxide None of these ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The gradient of sewers depends upon Velocity of flow All listed here Diameter of the sewer Discharge Velocity of flow All listed here Diameter of the sewer Discharge ANSWER DOWNLOAD EXAMIANS APP
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