Environmental Engineering
Which of the following unit works in anaerobic conditions?

Sedimentation tank
Trickling filters
Activated sludge treatment
Sludge digestion tank

ANSWER DOWNLOAD EXAMIANS APP

Environmental Engineering
Scour valves are provided

At street corners to control the flow of water
At every summit of rising mains
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