Which tool is used to clear obstructions in conduit, especially where bends occur?

Which tool is used to clear obstructions in conduit, especially where bends occur?

• A. Reel Brakes
• B. Mandrel
• C. Conduit brush
• D. Clevis

Answer: (B)

When you need to clear an obstruction in conduit, especially where it bends, a conduit mandrel is the right tool. A mandrel is designed to be fed through the conduit to push or dislodge debris ahead of it, keeping the inside diameter and round shape intact as you navigate curves. Flexible mandrels can negotiate bends, while rigid ones work well in straight sections. By pushing the blockage through rather than scraping along the walls, it reduces the risk of getting stuck at bends and helps restore a clear path for pulling cables. Reels brakes control cable payout during pulling, not clearing obstructions; a conduit brush cleans the interior but may not move a blockage through tight bends; and a clevis is hardware for securing connections, not clearing obstructions. So the mandrel is the best choice for this task.

When you need to clear an obstruction in conduit, especially where it bends, a conduit mandrel is the right tool. A mandrel is designed to be fed through the conduit to push or dislodge debris ahead of it, keeping the inside diameter and round shape intact as you navigate curves. Flexible mandrels can negotiate bends, while rigid ones work well in straight sections. By pushing the blockage through rather than scraping along the walls, it reduces the risk of getting stuck at bends and helps restore a clear path for pulling cables. Reels brakes control cable payout during pulling, not clearing obstructions; a conduit brush cleans the interior but may not move a blockage through tight bends; and a clevis is hardware for securing connections, not clearing obstructions. So the mandrel is the best choice for this task.