Waste Water Engineering For the COD test of sewage, organic matter is oxidised by K₂Cr₂O₇ in the presence of HNO₃ None of these HCl H₂SO₄ HNO₃ None of these HCl H₂SO₄ ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The stone ware sewers Are manufactured from clays and shale After casting are dried and burnt at temperature 150°C, 700°C and 1200°C Are used for carrying sewage and drainage from houses All listed here Are manufactured from clays and shale After casting are dried and burnt at temperature 150°C, 700°C and 1200°C Are used for carrying sewage and drainage from houses All listed here ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering To prevent settling down of sewage both at the bottom and on the sides of a large sewer, self-cleaning velocity recommended for Indian conditions, is 0.60 m/sec 0.70 m/sec 0.75 m/sec 0.50 m/sec 0.60 m/sec 0.70 m/sec 0.75 m/sec 0.50 m/sec ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Antisyphonage pipe is fitted With a W.'trap At the end of septic tanks On manholes At the beginning of sewer line With a W.'trap At the end of septic tanks On manholes At the beginning of sewer line ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The clarigesters are Rectangular septic tanks Circular Imhoff double storey tanks without bottom hoppers Circular septic tanks Circular Imhoff double tanks with bottom hoppers Rectangular septic tanks Circular Imhoff double storey tanks without bottom hoppers Circular septic tanks Circular Imhoff double tanks with bottom hoppers ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The sewerage system consists of All of these Lateral sewer House sewer Branch sewer All of these Lateral sewer House sewer Branch sewer ANSWER DOWNLOAD EXAMIANS APP
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