Waste Water Engineering The moisture content of sludge is reduced from 90% to 80% in a sludge digestion tank. The percentage decrease in the volume of sludge, is 0.05 0.1 0.5 0.25 0.05 0.1 0.5 0.25 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For house drainage minimum gradient is 1 in 60 1 in 400 1 in 10 1 in 80 1 in 60 1 in 400 1 in 10 1 in 80 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The grit chambers of sewage treatment plants, are generally cleaned after 14 days 2 days 12 days 7 days 14 days 2 days 12 days 7 days ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Bio-chemical oxygen demand (BOD) for the first 20 days in generally referred to Carbonaceous demand Initial demand All of these First stage demand Carbonaceous demand Initial demand All of these First stage demand ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If the over land flow from the critical point to the drain is 8 km and the difference in level is 12.4 m, the inlet time is 5 hours 2 hours 3 hours 4 hours 5 hours 2 hours 3 hours 4 hours ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The most effective arrangement for diverting excess storm water into a natural drainage, is Leaping weir Siphon spill way None of these Overflow weir Leaping weir Siphon spill way None of these Overflow weir ANSWER DOWNLOAD EXAMIANS APP
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