Environmental Engineering The design discharge for the separate sewer system shall be taken as 3 × DWF 6 × DWF Equal to dry weather flow (DWF) 2 × DWF 3 × DWF 6 × DWF Equal to dry weather flow (DWF) 2 × DWF ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Standard EDTA (ethylene diamine tetra acetic acid) solution is used to determine the Turbidity in water Hardness in water Dissolved oxygen in water Residual chlorine in water Turbidity in water Hardness in water Dissolved oxygen in water Residual chlorine in water ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering If the sewage contains grease and fatty oils, these are removed in Skimming tanks Detritus tanks Grit chambers Sedimentation tanks Skimming tanks Detritus tanks Grit chambers Sedimentation tanks ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The alum, when added as a coagulant in water Does not require alkalinity in water for flocculation Does not affect pH value of water Decreases pH value of water Increases pH value of water Does not require alkalinity in water for flocculation Does not affect pH value of water Decreases pH value of water Increases pH value of water ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The length of rectangular sedimentation tank should not be more than (Where ‘B’ is the width of the tank) B 8B 2B 4B B 8B 2B 4B ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering For the same solid content, if the quantity of sludge with moisture content of 98% is X, then the quantity of sludge with moisture content of 96% will be X/4 X 2X X/2 X/4 X 2X X/2 ANSWER DOWNLOAD EXAMIANS APP
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