Waste Water Engineering In the activated sludge process Sludge is activated by constant stirring Aeration is done with an admixture of previously aerated sludge Water is removed by centrifugal action Aeration is continued till stability Sludge is activated by constant stirring Aeration is done with an admixture of previously aerated sludge Water is removed by centrifugal action Aeration is continued till stability ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The most efficient cross-section of sewers in a combined sewerage system is Rectangular Circular New egged Parabolic Rectangular Circular New egged Parabolic ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In 1000 kg of sewage, the total solids approximate 0.5 to 1.0 kg 1 kg to 2.0 kg 5 kg to 7.5 kg 7.5 kg to 10 kg 0.5 to 1.0 kg 1 kg to 2.0 kg 5 kg to 7.5 kg 7.5 kg to 10 kg ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Ventilating shafts are provided to a sewer line at every 200 m 100 m 300 m 150 m 200 m 100 m 300 m 150 m ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The width of a rectangular sewer is twice its depth while discharging 1.5 m/sec. The width of the sewer is 0.88 m 1.76 m 1.36 m 0.68 m 0.88 m 1.76 m 1.36 m 0.68 m ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The detention period for plain sedimentation water tanks, is usually 4 to 8 hours 8 to 16 hours 16 to 24 hours 24 to 36 hours 4 to 8 hours 8 to 16 hours 16 to 24 hours 24 to 36 hours ANSWER DOWNLOAD EXAMIANS APP
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