Waste Water Engineering ‘Cowl’ is provided at Upper end of ventilating column First step in manhole Lower end of ventilating column Upper end of the manhole Upper end of ventilating column First step in manhole Lower end of ventilating column Upper end of the manhole 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 Primary treatment of sewage consists of removal of Floating materials Sand and girt Large suspended organic solids Oil and grease Floating materials Sand and girt Large suspended organic solids Oil and grease ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Stone ware pipes are Especially suited to pressure pipes Hydraulically efficient because of their smooth interior surface Highly impervious Highly resistant to sulphide corrosion Especially suited to pressure pipes Hydraulically efficient because of their smooth interior surface Highly impervious Highly resistant to sulphide corrosion ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The presence of free ammonia in sewage, is detected by Adding potassium permanganate Boiling Phenol-di-sulphuric acid Adding sulphuric acid Adding potassium permanganate Boiling Phenol-di-sulphuric acid Adding sulphuric acid ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In septic tanks, decomposition of organic bacteria, is done by Both types of bacterias Aerobic bacteria None of these Anaerobic bacteria Both types of bacterias Aerobic bacteria None of these Anaerobic bacteria ANSWER DOWNLOAD EXAMIANS APP
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