Waste Water Engineering A five day B.O.D. at 15°C of the sewage of a town is 100 kg/day. If the 5 day B.O.D. per head at 15°C for standard sewage is 0.1 kg/day, the population equivalent is 100 1000 5000 10000 100 1000 5000 10000 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For the COD test of sewage, organic matter is oxidised by K₂Cr₂O₇ in the presence of HCl HNO₃ None of these H₂SO₄ HCl HNO₃ None of these H₂SO₄ ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering A nuisance is experienced in diluting water if dilution factor is less than 40 60 100 20 40 60 100 20 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Antisyphonage pipe is fitted At the end of septic tanks With a W.'trap At the beginning of sewer line On manholes At the end of septic tanks With a W.'trap At the beginning of sewer line On manholes ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In primary sedimentation, the 0.2 mm inorganic solids get separated if specific gravity is 2.65 2.25 2.5 2.55 2.65 2.25 2.5 2.55 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering A sewer pipe contains 1 mm sand particles of specific gravity 2.65 and 5 mm organic particles of specific gravity 1.2, the minimum velocity required for removing the sewerage, is 0.40 m/sec 0.30 m/sec 0.45 m/sec 0.35 m/sec 0.40 m/sec 0.30 m/sec 0.45 m/sec 0.35 m/sec ANSWER DOWNLOAD EXAMIANS APP
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