Environmental Engineering Scour valves are provided At every depression and dead ends to drain out the waste water that may collect there At street corners to control the flow of water At every summit of rising mains At the foot of rising main along the slope to prevent back running of water At every depression and dead ends to drain out the waste water that may collect there At street corners to control the flow of water At every summit of rising mains At the foot of rising main along the slope to prevent back running of water ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The minimum dissolved oxygen which should always be present in water in order to save the aquatic life is 10 ppm 4 ppm 1 ppm 40 ppm 10 ppm 4 ppm 1 ppm 40 ppm ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The design discharge for the combined sewer system shall be taken as Rainfall + 2 DWF Equal to rainfall Rainfall + DWF Rainfall + 6 DWF Rainfall + 2 DWF Equal to rainfall Rainfall + DWF Rainfall + 6 DWF ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Corrosion in concrete sewers is caused by Nitrogen Chlorine Dissolved oxygen Septic conditions Nitrogen Chlorine Dissolved oxygen Septic conditions ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Alum as a coagulant is found to be most effective when pH range of water is 4 to 6 2 to 4 8 to 10 6 to 8 4 to 6 2 to 4 8 to 10 6 to 8 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering For satisfactory working of a sludge digestion unit, the pH range of digested sludge should be maintained as 10.5 to 12.0 8.5 to 10.0 4.5 to 6.0 6.5 to 8.0 10.5 to 12.0 8.5 to 10.0 4.5 to 6.0 6.5 to 8.0 ANSWER DOWNLOAD EXAMIANS APP
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