Scour valves are provided
A. at street corners to control the flow of water
B. at every depression and dead ends to drain out the waste water that may collect there
C. at the foot of rising main along the slope to prevent back running of water
D. at every summit of rising mains
Answer:B
Scour valves are provided
A. at street corners to control the flow of water B. at every depression and dead ends to drain out the waste water that may collect there C. at the foot of rising main along the slope to prevent back running of water D. at every summit of rising mains