Environmental Engineering The disinfection efficiency of chlorine increases by (i) Decreasing the time of contact (ii) Decreasing the temperature of water (iii) Increasing the temperature of water Both (i) and (ii) Only (iii) Only (i) Both (i) and (iii) Both (i) and (ii) Only (iii) Only (i) Both (i) and (iii) ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Composting and lagooning are the methods of Sludge digestion Sludge disposal Sedimentation Filtration Sludge digestion Sludge disposal Sedimentation Filtration ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering For normal sludge, the value of sludge index for Indian conditions is 50 to 150 0 to 50 350 to 500 150 to 350 50 to 150 0 to 50 350 to 500 150 to 350 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Disinfection of water results in Killing of disease bacteria Removal of hardness Complete sterilisation Removal of turbidity Killing of disease bacteria Removal of hardness Complete sterilisation Removal of turbidity ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The water carriage system of collection of waste product All of these Is cheaper in initial cost than dry conservancy system Creates hygienic problem Requires treatment before disposal All of these Is cheaper in initial cost than dry conservancy system Creates hygienic problem Requires treatment before disposal ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The phenolic compounds in public water supply should not be more than 0.1 ppm 0.01 ppm 0.001 ppm 0.0001 ppm 0.1 ppm 0.01 ppm 0.001 ppm 0.0001 ppm ANSWER DOWNLOAD EXAMIANS APP
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