Waste Water Engineering The digested sludge from septic tanks, is removed after a maximum period of 3 years 3.5 years 5 years 4 years 3 years 3.5 years 5 years 4 years ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Ventilating shafts are provided to a sewer line at every 300 m 100 m 150 m 200 m 300 m 100 m 150 m 200 m ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The sewers Must flow under gravity ½ to ¾ full All listed here Must be of adequate size to avoid over flow Must be laid at least 2 to 3 m deep to collect /water from the basements Must flow under gravity ½ to ¾ full All listed here Must be of adequate size to avoid over flow Must be laid at least 2 to 3 m deep to collect /water from the basements ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If 2% solution of a sewage sample is incubated for 5 days at 20°C and depletion of oxygen was found to be 5 ppm, B.O.D. of the sewage is None of these 225 ppm 200 ppm 250 ppm None of these 225 ppm 200 ppm 250 ppm ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If the peak discharge of a storm water drain (S.W. Drain) is expected to exceed 150 cumecs, the free board to be provided, is 50 cm 100 cm 90 cm 80 cm 50 cm 100 cm 90 cm 80 cm ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If the flame of a miner’s safety lamp in a manhole extinguishes within 5 minutes, the sewer certainly contains Oxygen Hydrogen sulphide Carbon dioxide Methane Oxygen Hydrogen sulphide Carbon dioxide Methane ANSWER DOWNLOAD EXAMIANS APP
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