Waste Water Engineering For a grit chamber, if the recommended velocity of flow is 0.2 m/sec and detention period is 2 minutes, the length of the tank, is 20 m 24 m 16 m 30 m 20 m 24 m 16 m 30 m ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The amount of oxygen consumed by the aerobic bacterias which cause the aerobic biological decomposition of sewage, is known Dissolved Oxygen (D.O.) None of these Chemical Oxygen Demand (C.O.D.) Bio-Chemical Oxygen Demand (B.O.D.) Dissolved Oxygen (D.O.) None of these Chemical Oxygen Demand (C.O.D.) Bio-Chemical Oxygen Demand (B.O.D.) ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The most efficient cross section of sewers in a separate sewerage system is Rectangular New egged Circular Parabolic Rectangular New egged Circular Parabolic ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering pH value of sludge during alkaline regression stage, is Less than 7 More than 7 Less than 6 More than 6 Less than 7 More than 7 Less than 6 More than 6 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Fresh sewage may become stale in Three to four hours One hour Six hours Two to three hours Three to four hours One hour Six hours Two to three hours ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If D.O. concentration falls down to zero in any natural drainage, it indicates the zone of Degradation Active decomposition Cleaner water Recovery Degradation Active decomposition Cleaner water Recovery ANSWER DOWNLOAD EXAMIANS APP
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