Final answer:
The small star-shaped pattern at the terminal point of a weld is usually an indication of a crater crack, which occurs when the weld metal solidifies. The star pattern is formed due to the cracking extending in multiple directions from the terminal point.
Step-by-step explanation:
The small star-shaped pattern at the terminal point of a weld is usually an indication of crater crack. A crater crack is formed when the weld metal solidifies, and a small depression or crack occurs at the end of the weld. This can happen due to the cooling process or the welding current being abruptly terminated. The star pattern is a result of the cracking extending in multiple directions from the terminal point.