Which of the following methods is used for laying of underground cables ?
Correct answer: D. All of the above
- A. Direct laying
- B. Draw-in-system
- C. Solid system
- D. All of the above
Explanation
Underground cables may be installed by direct laying in trenches, by pulling them through ducts in a draw-in system, or by embedding them in a solid system. Therefore, all three listed methods are valid.
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