Environmental Engineering Generally the detention period for grit chambers is kept as 1 minute 24 hours 5 minutes 12 hours 1 minute 24 hours 5 minutes 12 hours ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The suitable method for disinfection of swimming pool water is Lime treatment Ultra violet rays treatment By using potassium permanganate Chlorination Lime treatment Ultra violet rays treatment By using potassium permanganate Chlorination ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The chemical most commonly used to increase speed of sedimentation of sewage is Copper sulphate Sodium permanganate Lime Sulphuric acid Copper sulphate Sodium permanganate Lime Sulphuric acid ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The water carriage system of collection of waste product Requires treatment before disposal 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 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The type of sewer which is suitable for both combined and separate system is Horseshoe type sewer Egg shaped sewer Semi-elliptical sewer Circular sewer Horseshoe type sewer Egg shaped sewer Semi-elliptical sewer Circular sewer ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering In lime-soda process Only carbonate hardness is removed Only noncarbonated hardness is removed Lime reduces the carbonate hardness and soda-ash removes the non-carbonate hardness Lime reduces the non-carbonate hardness and soda-ash removes the carbonate hardness Only carbonate hardness is removed Only noncarbonated hardness is removed Lime reduces the carbonate hardness and soda-ash removes the non-carbonate hardness Lime reduces the non-carbonate hardness and soda-ash removes the carbonate hardness ANSWER DOWNLOAD EXAMIANS APP
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