Waste Water Engineering For the COD test of sewage, organic matter is oxidised by K₂Cr₂O₇ in the presence of None of these HCl HNO₃ H₂SO₄ None of these HCl HNO₃ H₂SO₄ ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The maximum spacing of manholes specified by Indian standard in sewers upto 0.3 m diameter is 20 m 75 m 45 m 30 m 20 m 75 m 45 m 30 m ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The gradient of sewers depends upon Velocity of flow Discharge Diameter of the sewer All listed here Velocity of flow Discharge Diameter of the sewer All listed here ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The grit chambers of sewage treatment plants, are generally cleaned after 2 days 14 days 12 days 7 days 2 days 14 days 12 days 7 days ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In sewers the gas generally found, is Hydrogen sulphide (H2S) All listed here Methane (CH4) Carbon dioxide (CO2) Hydrogen sulphide (H2S) All listed here Methane (CH4) Carbon dioxide (CO2) ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The detention time of a circular tank of diameter d and water depth H, for receiving the sewage Q per hour, is d (0.285d + 0.011H)/Q d (0.022d + 0.085H)/Q d (0.785d + 0.011H)/Q d² (0.011d + 0.785H)/Q d (0.285d + 0.011H)/Q d (0.022d + 0.085H)/Q d (0.785d + 0.011H)/Q d² (0.011d + 0.785H)/Q ANSWER DOWNLOAD EXAMIANS APP
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