Waste Water Engineering A sewer pipe contains 1 mm sand particles of specific gravity 2.65 and 5 mm organic particles of specific gravity 1.2, the minimum velocity required for removing the sewerage, is 0.35 m/sec 0.45 m/sec 0.30 m/sec 0.40 m/sec 0.35 m/sec 0.45 m/sec 0.30 m/sec 0.40 m/sec ANSWER DOWNLOAD EXAMIANS APP
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 0.1 0.5 0.05 0.25 0.1 0.5 0.05 0.25 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Acid regression stage of sludge digestion at a temperature 21°C extends over a period of 60 days 30 days 15 days 90 days 60 days 30 days 15 days 90 days ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The gas which may cause explosion in sewers, is Carbondioxide Methane Carbon monoxide Ammonia Carbondioxide Methane Carbon monoxide Ammonia ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering A well oxidized sewage contains nitrogen mainly as Nitrites None of these Free ammonia Nitrates Nitrites None of these Free ammonia Nitrates ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For large sewers, maximum distance between manholes may be 200 m 50 m 300 m 100 m 200 m 50 m 300 m 100 m ANSWER DOWNLOAD EXAMIANS APP
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