Waste Water Engineering If D is the diameter of a circular sewer and D’ is the top horizontal diameter of an equivalent egg shaped section, the relationship which holds good, is D’ = 0.94 D D’ = 0.64 D D’ = 0.84 D D’ = 0.74 D D’ = 0.94 D D’ = 0.64 D D’ = 0.84 D D’ = 0.74 D ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Drop manholes are the manholes Without entry ladders Without manhole covers With depths more than 3.5 m Having drains at different levels Without entry ladders Without manhole covers With depths more than 3.5 m Having drains at different levels ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The detention time (t) of a settling tank, may be defined as the time required for A particle to travel along its length A particle to travel from top surface to bottom sludge zone None of these The flow of sewage to fill the tank A particle to travel along its length A particle to travel from top surface to bottom sludge zone None of these The flow of sewage to fill the tank ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Sewer ventilating columns are generally placed at Distances 150 m to 300 m Upper ends of branch sewers Every change in the size of sewers All listed here Distances 150 m to 300 m Upper ends of branch sewers Every change in the size of sewers All listed here ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The normal value of over flow rates for plain primary sedimentation tanks, ranges between 25,000 to 35,000 litres/sqm/day 80,000 to 100,000 litres/sqm/day 50,000 to 60,000 litres/sqm/day 40,000 to 50,000 litres/sqm/day 25,000 to 35,000 litres/sqm/day 80,000 to 100,000 litres/sqm/day 50,000 to 60,000 litres/sqm/day 40,000 to 50,000 litres/sqm/day ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The sewage treatment in septic tanks is due to Anaerobic decomposition Aerobic decomposition None of these Parasitic decomposition Anaerobic decomposition Aerobic decomposition None of these Parasitic decomposition ANSWER DOWNLOAD EXAMIANS APP
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