Environmental Engineering Generally the detention period for grit chambers is kept as 5 minutes 12 hours 24 hours 1 minute 5 minutes 12 hours 24 hours 1 minute ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The overflow rate for plain sedimentation tanks is about 500 to 750 liters/hour/ m² 1000 to 1250 liters/hour/ m² 1500 to 2000 liters/hour/m² 1250 to 1500 liters/hour/m² 500 to 750 liters/hour/ m² 1000 to 1250 liters/hour/ m² 1500 to 2000 liters/hour/m² 1250 to 1500 liters/hour/m² ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The type of sewer which is suitable for both combined and separate system is Semi-elliptical sewer Horseshoe type sewer Egg shaped sewer Circular sewer Semi-elliptical sewer Horseshoe type sewer Egg shaped sewer Circular sewer ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Ground water is usually free from Both suspended and dissolved impurities None of these Suspended impurities Dissolved impurities Both suspended and dissolved impurities None of these Suspended impurities Dissolved impurities ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering If the sewage contains grease and fatty oils, these are removed in Grit chambers Detritus tanks Sedimentation tanks Skimming tanks Grit chambers Detritus tanks Sedimentation tanks Skimming tanks ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering For normal sludge, the value of sludge index for Indian conditions is 0 to 50 150 to 350 350 to 500 50 to 150 0 to 50 150 to 350 350 to 500 50 to 150 ANSWER DOWNLOAD EXAMIANS APP
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