Waste Water Engineering For detecting the nitrates in sewage, the colour may be developed by adding Phenol-di -sulphuric acid and potassium hydroxide Sulphuric acid and napthamine None of these Potassium permanganate Phenol-di -sulphuric acid and potassium hydroxide Sulphuric acid and napthamine None of these Potassium permanganate ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For trunk sewers more than 1.25 m in diameter, the ratio of the maximum daily sewage flow to the average daily sewage flow is assumed 2.5 3 1.5 2 2.5 3 1.5 2 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Water content of sewage is about 0.99 0.999 0.9 0.95 0.99 0.999 0.9 0.95 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In detritus tanks, Flow velocity is kept 0.09 m/sec Detention period is kept 3 to 4 minutes All listed here Organic and inorganic materials are separated Flow velocity is kept 0.09 m/sec Detention period is kept 3 to 4 minutes All listed here Organic and inorganic materials are separated ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In a sludge tank, the gas mainly produced, is Hydrogen Oxygen Nitrogen Carbon dioxide Hydrogen Oxygen Nitrogen Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
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
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