Waste Water Engineering A five day B.O.D. at 15°C of the sewage of a town is 100 kg/day. If the 5 day B.O.D. per head at 15°C for standard sewage is 0.1 kg/day, the population equivalent is 10000 1000 5000 100 10000 1000 5000 100 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In sewers the velocity of flow should not be More than 20 m/sec Less than 10 m/sec More than the self-cleansing velocity Less than the self-cleansing velocity More than 20 m/sec Less than 10 m/sec More than the self-cleansing velocity Less than the self-cleansing velocity ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In normal conditions, the period for sludge digestion, is 20 days 10 days 60 days 30 days 20 days 10 days 60 days 30 days ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The first stage of neutral process of sludge digestion, is Acid fermentation Alkaline fermentation None of these Acid regression Acid fermentation Alkaline fermentation None of these Acid regression ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In primary sedimentation, the 0.2 mm inorganic solids get separated if specific gravity is 2.25 2.5 2.55 2.65 2.25 2.5 2.55 2.65 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The standard B.O.D. of water is taken for 3 days 5 days 1 day 2 days 3 days 5 days 1 day 2 days ANSWER DOWNLOAD EXAMIANS APP
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