Waste Water Engineering In trickling filter, B.O.D. is reduced to 60 to 80% 30 to 40% 80 to 90% 40 to 60% 60 to 80% 30 to 40% 80 to 90% 40 to 60% ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The arrangement made for passing the sewer line below an obstruction below the hydraulic gradient lines called all of these Inverted syphon Depressed sewer Sag pipe all of these Inverted syphon Depressed sewer Sag pipe ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If the flame of a miner's safety lamp in the upper layers of the sewer forms an explosive, the sewer certainly contains Methane Oxygen Carbon dioxide Hydrogen sulphide Methane Oxygen Carbon dioxide Hydrogen sulphide ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Stone ware pipes are Hydraulically efficient because of their smooth interior surface Especially suited to pressure pipes Highly impervious Highly resistant to sulphide corrosion Hydraulically efficient because of their smooth interior surface Especially suited to pressure pipes Highly impervious Highly resistant to sulphide corrosion ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The normal value of over flow rates for plain primary sedimentation tanks, ranges between 80,000 to 100,000 litres/sqm/day 25,000 to 35,000 litres/sqm/day 40,000 to 50,000 litres/sqm/day 50,000 to 60,000 litres/sqm/day 80,000 to 100,000 litres/sqm/day 25,000 to 35,000 litres/sqm/day 40,000 to 50,000 litres/sqm/day 50,000 to 60,000 litres/sqm/day ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The asbestos cement sewers are Light in weight All of these Susceptible to corrosion by sulphuric acid Not structurally strong to bear large compressive stress Light in weight All of these Susceptible to corrosion by sulphuric acid Not structurally strong to bear large compressive stress ANSWER DOWNLOAD EXAMIANS APP
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