505. To avoid vaporisation in the pipe line, the pipe line over the ridge is laid such that it is not more than_______________? September 7, 2025 by Admin A. 2.4 m above the hydraulic gradient B. 6.4 m above the hydraulic gradient C. 10.0 m above the hydraulic gradient D. 5.0 above the hydraulic gradient ✅ The correct answer is option B.
