Waste Water Engineering The normal values of over flow rates for secondary sedimentation tanks, ranges between 50,000 to 60,000 litres/sqm/day 80,000 to 10,000 litres/sqm/day 40,000 to 50,000 litres/sqm/day 25,000 to 35,000 litres/sqm/day 50,000 to 60,000 litres/sqm/day 80,000 to 10,000 litres/sqm/day 40,000 to 50,000 litres/sqm/day 25,000 to 35,000 litres/sqm/day ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering A nuisance is experienced in diluting water if dilution factor is less than 60 40 20 100 60 40 20 100 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In trickling filter, B.O.D. is reduced to 30 to 40% 60 to 80% 80 to 90% 40 to 60% 30 to 40% 60 to 80% 80 to 90% 40 to 60% ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering pH value of sludge during alkaline regression stage, is More than 6 Less than 7 Less than 6 More than 7 More than 6 Less than 7 Less than 6 More than 7 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The presence of free ammonia in sewage, is detected by Phenol-di-sulphuric acid Adding potassium permanganate Adding sulphuric acid Boiling Phenol-di-sulphuric acid Adding potassium permanganate Adding sulphuric acid Boiling ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The gas evolved in sewers is Methane All of these Hydrogen sulphide Carbondioxide Methane All of these Hydrogen sulphide Carbondioxide ANSWER DOWNLOAD EXAMIANS APP
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