Environmental Engineering The percentage of chlorine in fresh bleaching powder is about 10 to 15 30 to 35 40 to 50 20 to 25 10 to 15 30 to 35 40 to 50 20 to 25 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The velocity of flow of water in a sedimentation tank is about 5 to 10 cm/sec 15 to 30 cm/minute 15 to 30 cm/sec 15 to 30 cm/hour 5 to 10 cm/sec 15 to 30 cm/minute 15 to 30 cm/sec 15 to 30 cm/hour ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering If the sewage contains grease and fatty oils, these are removed in Detritus tanks Sedimentation tanks Grit chambers Skimming tanks Detritus tanks Sedimentation tanks Grit chambers Skimming tanks ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering In facultative stabilization pond, the sewage is treated by Aerobic bacteria only Sedimentation Dual action of aerobic bacteria and anaerobic bacteria Algae only Aerobic bacteria only Sedimentation Dual action of aerobic bacteria and anaerobic bacteria Algae only ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The detention period and overflow rate respectively for plain sedimentation as compared to sedimentation with coagulation are generally More and less Less and more More and more Less and less More and less Less and more More and more Less and less ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Ground water is usually free from None of these Dissolved impurities Both suspended and dissolved impurities Suspended impurities None of these Dissolved impurities Both suspended and dissolved impurities Suspended impurities ANSWER DOWNLOAD EXAMIANS APP
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