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 0.5 0.25 0.05 0.1 0.5 0.25 0.05 0.1 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering 1000 kg of sewage contains 0.225 kg in solution 0.112 kg in solution 0.112 kg in suspension Both A and C of above 0.225 kg in solution 0.112 kg in solution 0.112 kg in suspension Both A and C of above ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The most widely used pump for lifting sewage is Reciprocating pump Air pressure pump Pneumatic ejector Centrifugal pump Reciprocating pump Air pressure pump Pneumatic ejector Centrifugal pump ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In very first stage of decomposition of the organic matter in sewage Nitrites are formed Nitrates are formed Carbondioxide is formed Ammonia is formed Nitrites are formed Nitrates are formed Carbondioxide is formed Ammonia is formed ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering 3.0 ml of raw sewage is diluted to 300 ml. The D.O. concentration of the diluted sample at the beginning of the test was 8 mg/l. After 5 day-incubation at 20°C, the D.O. concentration was 5 mg/l. The BOD of raw sewerage is 300 mg/l 200 mg/l 400 mg/l 100 mg/l 300 mg/l 200 mg/l 400 mg/l 100 mg/l ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The sewage treatment in septic tanks is due to None of these Aerobic decomposition Anaerobic decomposition Parasitic decomposition None of these Aerobic decomposition Anaerobic decomposition Parasitic decomposition ANSWER DOWNLOAD EXAMIANS APP
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