Which of the following is a common outcome of improper welding technique?

Improper welding technique is highly likely to lead to weakened structures. This occurs because incorrect practices during welding, such as inadequate heating, incorrect filler material, or insufficient penetration, can create flaws in the weld. These flaws may include lack of fusion, porosity, or cracks, which compromise the integrity of the joint. A welded joint that is not properly executed cannot distribute loads effectively, leading to stress concentrations and a significantly reduced load-bearing capacity. This ultimately makes the entire structure less reliable and more susceptible to failure under loads that it should otherwise withstand if welded correctly.

Stronger joints, increased fatigue resistance, and higher durability are not outcomes of poor welding practices. In fact, these attributes are typically the results of skilled, careful welding techniques and attention to proper parameters.