Waste Water Engineering As compared to fresh river water, sea water contains oxygen 10% less 10% more 20% less 20% more 10% less 10% more 20% less 20% more ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Bio-chemical oxygen demand (BOD) for the first 20 days in generally referred to Initial demand First stage demand All of these Carbonaceous demand Initial demand First stage demand All of these Carbonaceous demand ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The self-cleansing velocity of water flowing through pipe lines, is 2 metres/sec 0.25 metre/sec 0.5 metre/sec 1 metre/sec 2 metres/sec 0.25 metre/sec 0.5 metre/sec 1 metre/sec 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 50 ppm 100 ppm 200 ppm 150 ppm 50 ppm 100 ppm 200 ppm 150 ppm ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The normal values of over flow rates for secondary sedimentation tanks, ranges between 25,000 to 35,000 litres/sqm/day 50,000 to 60,000 litres/sqm/day 40,000 to 50,000 litres/sqm/day 80,000 to 10,000 litres/sqm/day 25,000 to 35,000 litres/sqm/day 50,000 to 60,000 litres/sqm/day 40,000 to 50,000 litres/sqm/day 80,000 to 10,000 litres/sqm/day ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Lead caulked joints are used for laying I. pipes Earthenware pipes Stone ware pipes G.I. pipes I. pipes Earthenware pipes Stone ware pipes G.I. pipes ANSWER DOWNLOAD EXAMIANS APP
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