Environmental Engineering The design discharge for the separate sewer system shall be taken as 2 × DWF Equal to dry weather flow (DWF) 6 × DWF 3 × DWF 2 × DWF Equal to dry weather flow (DWF) 6 × DWF 3 × DWF ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Which of the following chemical compounds can be used for de-chlorination of water? Chloramines Carbon dioxide Sulphur dioxide Bleaching powder Chloramines Carbon dioxide Sulphur dioxide Bleaching powder ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The chemical most commonly used to increase speed of sedimentation of sewage is Copper sulphate Lime Sodium permanganate Sulphuric acid Copper sulphate Lime Sodium permanganate Sulphuric acid ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The water carriage system of collection of waste product Creates hygienic problem Is cheaper in initial cost than dry conservancy system All of these Requires treatment before disposal Creates hygienic problem Is cheaper in initial cost than dry conservancy system All of these Requires treatment before disposal ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering As compared to rapid sand filters, slow sand filters give (i) Slower filtration rate (ii) Higher filtration rate (iii) Lesser efficiency in removal of bacteria (iv) Higher efficiency in removal of bacteria The correct answer is (i) and (ii) (ii) and (iii) (i) and (iv) (ii) and (iv) (i) and (ii) (ii) and (iii) (i) and (iv) (ii) and (iv) ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The specific gravity of sewage is Slightly greater than 1 Slightly less than 1 Equal to 1 Much greater than 1 Slightly greater than 1 Slightly less than 1 Equal to 1 Much greater than 1 ANSWER DOWNLOAD EXAMIANS APP
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