Waste Water Engineering In sewers the highest non-scouring velocity is achieved in Stone ware sewers Cement concrete sewers Glazed bricks sewers Cast iron sewers Stone ware sewers Cement concrete sewers Glazed bricks sewers Cast iron sewers ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For the COD test of sewage, organic matter is oxidised by K₂Cr₂O₇ in the presence of None of these H₂SO₄ HCl HNO₃ None of these H₂SO₄ HCl HNO₃ ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Drop manholes at the junctions of sewer lines, are provided if Ordinary manhole cannot be built Sewer line runs along a main road Invert level of a branch sewer is more than 60 cm that of the main sewer Two sewer lines intersect Ordinary manhole cannot be built Sewer line runs along a main road Invert level of a branch sewer is more than 60 cm that of the main sewer Two sewer lines intersect ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For house drainage minimum gradient is 1 in 80 1 in 10 1 in 60 1 in 400 1 in 80 1 in 10 1 in 60 1 in 400 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If the depletion of oxygen is found to be 5 ppm after incubating a 2.5% solution of sewage sample for 5 days at 21°C, B.O.D. of the sewage is 50 ppm 150 ppm 100 ppm 200 ppm 50 ppm 150 ppm 100 ppm 200 ppm ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If a paper moistened with lead acetate for five minutes when placed in manhole turns black. The sewer certainly contains Hydrogen sulphide Oxygen Carbon dioxide Methane Hydrogen sulphide Oxygen Carbon dioxide Methane ANSWER DOWNLOAD EXAMIANS APP
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