Waste Water Engineering The first stage of neutral process of sludge digestion, is Acid fermentation Alkaline fermentation Acid regression None of these Acid fermentation Alkaline fermentation Acid regression None of these ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Water content of sewage is about 0.95 0.99 0.9 0.999 0.95 0.99 0.9 0.999 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering A rainfall may be classified as acidic if its pH value is less or equal to 7 6 5 6.5 7 6 5 6.5 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The pH value of fresh sewage is usually Less than 7 Equal to zero Equal to 7 More than 7 Less than 7 Equal to zero Equal to 7 More than 7 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Primary treatment of sewage consists of removal of Sand and girt Oil and grease Large suspended organic solids Floating materials Sand and girt Oil and grease Large suspended organic solids Floating materials ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Hazen’s formula VS = 418 (GS – Gw)d [(3T + 70)/100] is used for the settlement velocity of the particles of diameter Less than 0.1 mm Greater than 0.1 mm Less than 0.01 mm Less than 0.05 mm Less than 0.1 mm Greater than 0.1 mm Less than 0.01 mm Less than 0.05 mm ANSWER DOWNLOAD EXAMIANS APP
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