A weld discontinuity is an interruption in the typical structure of a weld. Is this true or false?

A weld discontinuity is an interruption in the typical structure of a weld. Is this true or false?

• A. True
• B. False
• C. Sometimes
• D. Not necessarily

Answer: (A)

Discontinuity means any interruption in the weld metal that breaks its normal, continuous structure. So the statement is true. These interruptions can appear on the surface or be internal, including cracks, porosity, slag inclusions, lack of fusion, and undercut. They are deviations from what the weld should be, and codes or standards determine whether a given discontinuity is acceptable or constitutes a defect.

Discontinuity means any interruption in the weld metal that breaks its normal, continuous structure. So the statement is true. These interruptions can appear on the surface or be internal, including cracks, porosity, slag inclusions, lack of fusion, and undercut. They are deviations from what the weld should be, and codes or standards determine whether a given discontinuity is acceptable or constitutes a defect.