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If h is the difference in level between end points separated by l, then the slope correction is h²/2l + h⁴/8l. The second term may be neglected if the value of h in a 20 m distance is less than

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If h is the difference in level between end points separated by l, then the slope correction is h²/2l + h⁴/8l. The second term may be neglected if the value of h in a 20 m distance is less than Answer: 3 m

Question context

This question is part of 🚧 Civil Engineering within the broader 🛠️ Engineering Essentials subject and appears in the DemoPaper-Pakistan preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.