Waste Water Engineering The rate of accumulation of sludge in septic tanks is recommended as 25 litres/person/month 30 litres/person/year 25 litres/person/year 30 litres/person/month 25 litres/person/month 30 litres/person/year 25 litres/person/year 30 litres/person/month ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The asbestos cement sewers are Susceptible to corrosion by sulphuric acid Light in weight Not structurally strong to bear large compressive stress All of these Susceptible to corrosion by sulphuric acid Light in weight Not structurally strong to bear large compressive stress All of these ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The dimensions of a rectangular settling tank are: length 24 m, width 6 m and depth 3 m. If 2 hour detention period for tanks is recommended, the rate of flow of sewage per hour, is 216 cu.m 204 cu.m 208 cu.m 212 cu.m 216 cu.m 204 cu.m 208 cu.m 212 cu.m ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Hydraulic mean radius is Difference in heads between two points in circular pipes Mean radius of sewer Mean of radii in a pipe line of varying cross -sections Cross-sectional area/wetted perimeter Difference in heads between two points in circular pipes Mean radius of sewer Mean of radii in a pipe line of varying cross -sections Cross-sectional area/wetted perimeter ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The sewers Must flow under gravity ½ to ¾ full Must be of adequate size to avoid over flow All listed here Must be laid at least 2 to 3 m deep to collect /water from the basements Must flow under gravity ½ to ¾ full Must be of adequate size to avoid over flow All listed here Must be laid at least 2 to 3 m deep to collect /water from the basements ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Ventilating shafts are provided to a sewer line at every 200 m 150 m 300 m 100 m 200 m 150 m 300 m 100 m ANSWER DOWNLOAD EXAMIANS APP
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