Waste Water Engineering The detention time (t) of a settling tank, may be defined as the time required for The flow of sewage to fill the tank A particle to travel from top surface to bottom sludge zone None of these A particle to travel along its length The flow of sewage to fill the tank A particle to travel from top surface to bottom sludge zone None of these A particle to travel along its length ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In normal conditions, the period for sludge digestion, is 30 days 10 days 20 days 60 days 30 days 10 days 20 days 60 days ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The minimum recommended diameter of sewers, is 15 cm 20 cm 10 cm 5 cm 15 cm 20 cm 10 cm 5 cm ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The factor responsible for purification of sewage in river is All listed here Dissolved oxygen in water Temperature Hydrology All listed here Dissolved oxygen in water Temperature Hydrology ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The sewage treatment units in which anaerobic decomposition of organic matter is used, are called None of these Trickling filters Sludge sedimentation tanks Imhoff tanks None of these Trickling filters Sludge sedimentation tanks Imhoff tanks ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The sewers Must be laid at least 2 to 3 m deep to collect /water from the basements Must be of adequate size to avoid over flow All listed here Must flow under gravity ½ to ¾ full Must be laid at least 2 to 3 m deep to collect /water from the basements Must be of adequate size to avoid over flow All listed here Must flow under gravity ½ to ¾ full ANSWER DOWNLOAD EXAMIANS APP
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