Waste Water Engineering The settlement velocity of a solid (diameter 0.5 mm, specific gravity 1.75) in water having temperature 10°C, is 313.5 cm/sec 213.5 cm/sec 413.5 cm/sec 500 cm/sec 313.5 cm/sec 213.5 cm/sec 413.5 cm/sec 500 cm/sec ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The moisture content of sludge is reduced from 90% to 80% in a sludge digestion tank. The percentage decrease in the volume of sludge, is 0.25 0.05 0.1 0.5 0.25 0.05 0.1 0.5 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The ratio of the diameter of a circular section and the side of a square section hydraulically equivalent, is 1.085 1.075 1.065 1.095 1.085 1.075 1.065 1.095 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If the depletion of oxygen is found to be 5 ppm after incubating a 2.5% solution of sewage sample for 5 days at 21°C, B.O.D. of the sewage is 200 ppm 150 ppm 100 ppm 50 ppm 200 ppm 150 ppm 100 ppm 50 ppm ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Rate of flow of sewage is generally assumed Equal to the rate of water supply More than the rate of water supply At 150 litres per capita Less than the rate of water supply Equal to the rate of water supply More than the rate of water supply At 150 litres per capita Less than the rate of water supply ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The average temperature of sewage in India, is 20°C 10°C 25°C 15°C 20°C 10°C 25°C 15°C ANSWER DOWNLOAD EXAMIANS APP
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