Waste Water Engineering For the COD test of sewage, organic matter is oxidised by K₂Cr₂O₇ in the presence of HCl H₂SO₄ HNO₃ None of these HCl H₂SO₄ HNO₃ None of these ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Stone ware pipes are Hydraulically efficient because of their smooth interior surface Highly resistant to sulphide corrosion Highly impervious Especially suited to pressure pipes Hydraulically efficient because of their smooth interior surface Highly resistant to sulphide corrosion Highly impervious Especially suited to pressure pipes ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The stone ware sewers After casting are dried and burnt at temperature 150°C, 700°C and 1200°C Are manufactured from clays and shale Are used for carrying sewage and drainage from houses All listed here After casting are dried and burnt at temperature 150°C, 700°C and 1200°C Are manufactured from clays and shale Are used for carrying sewage and drainage from houses All listed here ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Lead acetate test in sewer manhole is done to test the presence of Methane gas Carbondioxide gas Hydrogen sulphide Diesel vapours Methane gas Carbondioxide gas Hydrogen sulphide Diesel vapours ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The quantity of liquid waste which flows in sewers during the period of rainfall, is known Sanitary sewage Storm sewage None of these Industrial waste Sanitary sewage Storm sewage None of these Industrial waste ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The presence of free ammonia in sewage, is detected by Adding sulphuric acid Adding potassium permanganate Boiling Phenol-di-sulphuric acid Adding sulphuric acid Adding potassium permanganate Boiling Phenol-di-sulphuric acid ANSWER DOWNLOAD EXAMIANS APP
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