Waste Water Engineering For the COD test of sewage, organic matter is oxidised by K₂Cr₂O₇ in the presence of HCl HNO₃ H₂SO₄ None of these HCl HNO₃ H₂SO₄ None of these ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For drainage pipes in buildings the test applied before putting them to use, is All listed here Smoke test Straightness test Water test All listed here Smoke test Straightness test Water test ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Cement concrete sewers are only suitable if non-scouring velocity is between 4.5 to 5.5 m/sec 3.5 to 4.5 m/sec 3.0 to 4.0 m/sec 2.5 to 3.0 m/sec 4.5 to 5.5 m/sec 3.5 to 4.5 m/sec 3.0 to 4.0 m/sec 2.5 to 3.0 m/sec ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Design period of 40 to 50 years is adopted for Branch sewers Trunk sewers Main sewers All listed here Branch sewers Trunk sewers Main sewers All listed here ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Bio-chemical oxygen demand (BOD) for the first 20 days in generally referred to Carbonaceous demand All of these Initial demand First stage demand Carbonaceous demand All of these Initial demand First stage demand ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering R.M.O. expenses include Running expenses Maintenance expenses All of these Operation expenses Running expenses Maintenance expenses All of these Operation expenses ANSWER DOWNLOAD EXAMIANS APP
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