Q. To avoid vaporisation in the pipe line, the pipe line over the ridge is laid such that it is not more than (Solved)
1. 2.4 m above the hydraulic gradient
2. 6.4 m above the hydraulic gradient
3. 10.0 m above the hydraulic gradient
4. 5.0 above the hydraulic gradient
- b. 6.4 m above the hydraulic gradient