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 For the COD test of sewage, organic matter is oxidised by K₂Cr₂O₇ in the presence of H₂SO₄ None of these HNO₃ HCl H₂SO₄ None of these HNO₃ HCl ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If the discharge of a sewer running half is 628 1.p.s., i = 0.001, and n = 0.010, the diameter of the sewer, is 1.59 m 1.49 m 1.39 m 1.69 m 1.59 m 1.49 m 1.39 m 1.69 m ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The ratio of design discharge to the surface area of a sedimentation tank is called All of these Overflow rate Overflow velocity Surface loading All of these Overflow rate Overflow velocity Surface loading ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The liquid wastes from kitchens, bath rooms and wash basins, is not called Sewage Sullage None of these Liquid waste Sewage Sullage None of these Liquid waste ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The minimum diameter of a sewer is kept 20 cm 15 cm 25 cm 10 cm 20 cm 15 cm 25 cm 10 cm ANSWER DOWNLOAD EXAMIANS APP
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