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Placing a small weld at each end of a joint is called:

a) tack welding
b) spot welding
c) stitch welding
d) plug welding

Answer :

Final answer:

Placing a small weld at each end of a joint is called tack welding. It is a technique used to hold pieces of metal together temporarily before the final welding, ensuring alignment during the welding process.

Explanation:

The question you asked is about a technique used in welding, specifically what it is called when a small weld is placed at each end of a joint. The correct answer to your question is a) tack welding. Tack welding is a method used to temporarily hold pieces of metal together before performing the final welding process. This technique is essential in ensuring that the parts being welded remain aligned and in position throughout the welding process. Other options such as spot welding, stitch welding, and plug welding are also techniques used in welding but serve different purposes.

Spot welding involves joining pieces of metal together at small points by applying pressure and heat. Stitch welding involves creating a sequence of welds along a joint, leaving space between each weld, similar to the stitches in sewing. Plug welding is used to fill holes in one piece of metal using a weld from another piece of metal.

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