Answer :
Final answer:
TIG welding is the best technique to prevent joint distortion of a weld.Therefore, the correct answer is : (a).
Explanation:
The welding technique that would be best used to prevent joint distortion of a weld is TIG welding. TIG welding, also known as Gas Tungsten Arc Welding (GTAW), uses a non-consumable tungsten electrode to produce the weld. TIG welding produces high-quality and precise welds, making it suitable for applications where joint distortion needs to be minimized, such as in aerospace and automotive industries. Its slower welding speed and control over the heat input allow for better control over the welding process, reducing the chances of joint distortion.
