Environmental Engineering Scour valves are provided At every summit of rising mains At street corners to control the flow of water At every depression and dead ends to drain out the waste water that may collect there At the foot of rising main along the slope to prevent back running of water At every summit of rising mains At street corners to control the flow of water At every depression and dead ends to drain out the waste water that may collect there At the foot of rising main along the slope to prevent back running of water ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Which of the following methods of analysis of water distribution system is most suitable for long and narrow pipe system? Electrical analysis method Circle method Hardy cross method Equivalent pipe method Electrical analysis method Circle method Hardy cross method Equivalent pipe method ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The phenolic compounds in public water supply should not be more than 0.1 ppm 0.0001 ppm 0.001 ppm 0.01 ppm 0.1 ppm 0.0001 ppm 0.001 ppm 0.01 ppm ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Which of the following unit works in anaerobic conditions? Activated sludge treatment Sedimentation tank Trickling filters Sludge digestion tank Activated sludge treatment Sedimentation tank Trickling filters Sludge digestion tank ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The detention period in coagulation tanks is usually kept as 2 to 6 days 30 to 45 minutes 2 to 6 hours 1 to 2 minutes 2 to 6 days 30 to 45 minutes 2 to 6 hours 1 to 2 minutes ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering For a given discharge, the efficiency of sedimentation tank can be increased by Decreasing the depth of tank Decreasing the surface area of tank Increasing the surface area of tank Increasing the depth of tank Decreasing the depth of tank Decreasing the surface area of tank Increasing the surface area of tank Increasing the depth of tank ANSWER DOWNLOAD EXAMIANS APP
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