Waste Water Engineering In the activated sludge process Aeration is continued till stability Sludge is activated by constant stirring Water is removed by centrifugal action Aeration is done with an admixture of previously aerated sludge Aeration is continued till stability Sludge is activated by constant stirring Water is removed by centrifugal action Aeration is done with an admixture of previously aerated sludge 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 0.05 mm Less than 0.01 mm Greater than 0.1 mm Less than 0.1 mm Less than 0.05 mm Less than 0.01 mm Greater than 0.1 mm Less than 0.1 mm ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For evaporation and measurement of settable solids, the apparatus used, is A breaker An Imhoff cone A jar A test tube A breaker An Imhoff cone A jar A test tube ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Clogging of sewers, is caused due to Low discharge Greasy and oily matters Silting All of these Low discharge Greasy and oily matters Silting All of these ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For trunk sewers more than 1.25 m in diameter, the ratio of the maximum daily sewage flow to the average daily sewage flow is assumed 2 3 1.5 2.5 2 3 1.5 2.5 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In sewers the effect of scouring is more on Top side Bottom side All sides Horizontal side Top side Bottom side All sides Horizontal side ANSWER DOWNLOAD EXAMIANS APP
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