AWS Welding Inspection and Testing Certification Practice Test

What type of weld is produced by filling an elongated hole in an overlapping member?

1. Plug weld

2. Spot weld

3. Seam weld

4. Slot weld

The correct answer is: Slot weld

The type of weld produced by filling an elongated hole in an overlapping member is classified as a slot weld. Slot welding involves creating a weld in an elongated opening, which allows for a greater surface area to be welded compared to a simpler type of weld. This method is particularly useful in applications where a strong mechanical connection is required between two overlapping metal pieces. Slot welds can provide improved strength and resistance to shear forces, making them advantageous in various structural applications. The elongated shape of the hole not only accommodates the weld metal but also allows for some alignment adjustment during the welding process, ensuring a more effective and secure connection between the two components. In contrast, plug welds involve filling a round hole, spot welds are formed at specific points without penetrating through the base materials completely, and seam welds are continuous welds along a joint. Thus, the distinct characteristic of slot welds being associated with elongated holes makes them the correct answer in this context.