Answer :
Final answer:
The chisel and hammer are the hand tools used for preparing a welding surface and cleaning a completed weld. They help in removing contaminants and excess weld deposits.
Explanation:
When preparing a welding surface and cleaning a completed weld, the hand tools primarily used are a chisel and hammer. These tools are essential for removing rust, old paint, and other contaminants from the metal surface prior to welding to ensure a good quality weld. The chisel is used to chip away at any hardened substances on the surface, while the hammer helps in delivering force to do so. After welding, the same tools can be used to clean and chip away excess or undesirable weld deposits.
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