Waste Water Engineering The detention period for plain sedimentation water tanks, is usually 16 to 24 hours 8 to 16 hours 4 to 8 hours 24 to 36 hours 16 to 24 hours 8 to 16 hours 4 to 8 hours 24 to 36 hours ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For design purposes, the normal rate of infiltration of ground water into the sewer, is 1500 litres/km/cm 500 litres/km/cm 1000 litres/km/cm 2000 litres/km/cm 1500 litres/km/cm 500 litres/km/cm 1000 litres/km/cm 2000 litres/km/cm ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For treating the sewage of a large city, you will recommend None of these Sedimentation tanks with high rate trickling filters A sedimentation tank and an activated sludge treatment plant A plant consisting of Imhoff tanks with low rate trickling filters None of these Sedimentation tanks with high rate trickling filters A sedimentation tank and an activated sludge treatment plant A plant consisting of Imhoff tanks with low rate trickling filters ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering With self cleansing velocity in sewers Neither silting nor scouring occurs at bottom Scouring occurs at bottom Silting occurs at bottom Both silting and scouring occur at bottom Neither silting nor scouring occurs at bottom Scouring occurs at bottom Silting occurs at bottom Both silting and scouring occur at bottom ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Aerobic bacterias Oxidise organic matter in sewage Flourish in the presence of free oxygen Consume organic matter as their food All of these Oxidise organic matter in sewage Flourish in the presence of free oxygen Consume organic matter as their food All of these ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Aerobic activity is maximum In freshly produced sewage None of these In sewer treatment plants At sewer pipes In freshly produced sewage None of these In sewer treatment plants At sewer pipes ANSWER DOWNLOAD EXAMIANS APP
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