Waste Water Engineering Cement concrete sewers are only suitable if non-scouring velocity is between 4.5 to 5.5 m/sec 2.5 to 3.0 m/sec 3.5 to 4.5 m/sec 3.0 to 4.0 m/sec 4.5 to 5.5 m/sec 2.5 to 3.0 m/sec 3.5 to 4.5 m/sec 3.0 to 4.0 m/sec ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In a residential colony, sewers of diameters 100 mm, 150 mm and 225 mm were laid with a gradient 1 in 120. Which portion of the sewage system does not choke in due course of time? 150 mm dia 225 mm dia 100 mm dia All of these 150 mm dia 225 mm dia 100 mm dia All of these ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering As compared to fresh river water, sea water contains oxygen 10% more 20% more 10% less 20% less 10% more 20% more 10% less 20% less ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Imhoff cone is used to measure Total solids Total in organic solids Settleable solids Total organic solids Total solids Total in organic solids Settleable solids Total organic solids 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 250 ppm 200 ppm 225 ppm None of these 250 ppm 200 ppm 225 ppm None of these ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The asbestos cement sewers are Susceptible to corrosion by sulphuric acid All of these Not structurally strong to bear large compressive stress Light in weight Susceptible to corrosion by sulphuric acid All of these Not structurally strong to bear large compressive stress Light in weight ANSWER DOWNLOAD EXAMIANS APP
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