Waste Water Engineering The spacing of bars of perforations of fine screens used for the treatment of sewage, is 3 to 5 mm 5 to 8 mm 2 to 3 mm 8 to 10 mm 3 to 5 mm 5 to 8 mm 2 to 3 mm 8 to 10 mm 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 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 Are manufactured from clays and shale ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For detecting the nitrates in sewage, the colour may be developed by adding Phenol-di -sulphuric acid and potassium hydroxide Potassium permanganate Sulphuric acid and napthamine None of these Phenol-di -sulphuric acid and potassium hydroxide Potassium permanganate Sulphuric acid and napthamine None of these ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Aerobic activity is maximum None of these In freshly produced sewage At sewer pipes In sewer treatment plants None of these In freshly produced sewage At sewer pipes In sewer treatment plants ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The self-cleansing velocity of water flowing through pipe lines, is 0.25 metre/sec 1 metre/sec 2 metres/sec 0.5 metre/sec 0.25 metre/sec 1 metre/sec 2 metres/sec 0.5 metre/sec ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering ¾th or ¼th extra space is left in sewer pipes at maximum discharge for All listed here Large scale infiltration of storm water Unexpected increase in population Low estimates of the average and maximum flows All listed here Large scale infiltration of storm water Unexpected increase in population Low estimates of the average and maximum flows ANSWER DOWNLOAD EXAMIANS APP
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