Waste Water Engineering 3.0 ml of raw sewage is diluted to 300 ml. The D.O. concentration of the diluted sample at the beginning of the test was 8 mg/l. After 5 day-incubation at 20°C, the D.O. concentration was 5 mg/l. The BOD of raw sewerage is 400 mg/l 200 mg/l 300 mg/l 100 mg/l 400 mg/l 200 mg/l 300 mg/l 100 mg/l ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The sewage discharge in a detritus tank of a treatment plant is 576 litres/sec with flow velocity of 0.2 m/sec. If the ratio of width to depth is 2, the depth is 150 cm 110 cm 120 cm 100 cm 150 cm 110 cm 120 cm 100 cm ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In R.C. sewer pipes, the percentage longitudinal reinforcement to the cross-sectional area of concrete is kept 5 10 2 0.25 5 10 2 0.25 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The sewer that unloads the sewage at the point of treatment is called House sewer Outfall sewer Branch sewer Main sewer House sewer Outfall sewer Branch sewer Main sewer ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Dry weather flow is: Average daily rate of flow Average annual rate of flow Average monthly rate of flow Water supply allowance per capita Average daily rate of flow Average annual rate of flow Average monthly rate of flow Water supply allowance per capita ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The normal values of over flow rates for sedimentation tanks using coagulant, ranges between 80,000 to 100,000 litres/sqm/day 50,000 to 60,000 litres/sqm/day 40,000 to 50,000 litres/sqm/day 25,000 to 35,000 litres/sqm/day 80,000 to 100,000 litres/sqm/day 50,000 to 60,000 litres/sqm/day 40,000 to 50,000 litres/sqm/day 25,000 to 35,000 litres/sqm/day ANSWER DOWNLOAD EXAMIANS APP
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