Waste Water Engineering In sewers designed with self cleansing velocity, The bottom is scoured Neither silting nor scouring occurs at the bottom Both silting and scouring occur at the bottom The bottom is silted The bottom is scoured Neither silting nor scouring occurs at the bottom Both silting and scouring occur at the bottom The bottom is silted 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 HCl HNO₃ H₂SO₄ None of these HCl HNO₃ ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If 2% solution of a sewage sample is incubated for 5 days at 20°C and depletion of oxygen was found to be 5 ppm, B.O.D. of the sewage is 250 ppm 200 ppm 225 ppm None of these 250 ppm 200 ppm 225 ppm None of these ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The quantity of liquid waste which flows in sewers during the period of rainfall, is known Storm sewage None of these Sanitary sewage Industrial waste Storm sewage None of these Sanitary sewage Industrial waste ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering During preliminary treatment of a sewage Girt and sand are removed by girt chambers Oil and grease are removed from skimming tanks Floating materials are removed by screening All listed here Girt and sand are removed by girt chambers Oil and grease are removed from skimming tanks Floating materials are removed by screening All listed here ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering With self cleansing velocity in sewers Both silting and scouring occur at bottom Silting occurs at bottom Scouring occurs at bottom Neither silting nor scouring occurs at bottom Both silting and scouring occur at bottom Silting occurs at bottom Scouring occurs at bottom Neither silting nor scouring occurs at bottom ANSWER DOWNLOAD EXAMIANS APP
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