Environmental Engineering In facultative stabilization pond, the sewage is treated by Aerobic bacteria only Algae only Dual action of aerobic bacteria and anaerobic bacteria Sedimentation Aerobic bacteria only Algae only Dual action of aerobic bacteria and anaerobic bacteria Sedimentation ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The depression of water table in a well due to pumping will be maximum(Where ‘R’ is the radius of influence) None of these At a distance R/2 from the well At a distance R from the well Close to the well None of these At a distance R/2 from the well At a distance R from the well Close to the well ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Air binding phenomena in rapid sand filters occur due to Higher turbidity in the effluent Low temperature Mud ball formation Excessive negative head Higher turbidity in the effluent Low temperature Mud ball formation Excessive negative head ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The type of sewer which is suitable for both combined and separate system is Egg shaped sewer Horseshoe type sewer Circular sewer Semi-elliptical sewer Egg shaped sewer Horseshoe type sewer Circular sewer Semi-elliptical sewer ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The design discharge for the combined sewer system shall be taken as Equal to rainfall Rainfall + 2 DWF Rainfall + 6 DWF Rainfall + DWF Equal to rainfall Rainfall + 2 DWF Rainfall + 6 DWF Rainfall + DWF ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The amount of coagulant needed for coagulation of water increases with (i) Increase in turbidity of water (ii) Decrease in turbidity of water (iii) Increase in temperature of water (iv) Decrease in temperature of water The correct answer is (ii) and (iv) (i) and (ii) (ii) and (iii) (i)and(iv) (ii) and (iv) (i) and (ii) (ii) and (iii) (i)and(iv) ANSWER DOWNLOAD EXAMIANS APP
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