Which term describes a welding defect characterized by voids and holes?

The term that describes a welding defect characterized by voids and holes is porosity. Porosity occurs when gas bubbles become trapped in the weld metal as it solidifies. These voids or holes can weaken the welded joint and may lead to structural failures. Porosity is typically caused by inadequate cleaning of the materials being welded, excessive moisture, or improper welding techniques that allow gas to be introduced into the weld pool.

Understanding porosity is crucial for container inspectors because it directly impacts the integrity and safety of welded structures. It's important for welders to employ practices that minimize gas entrapment to produce strong, reliable welds. Recognizing this defect during inspections helps ensure that containers meet industry safety standards.

Other terms like gusset, tack weld, and knot refer to different concepts in welding and fabrication. Gussets are structural elements used to support joints; tack welds are temporary welds used to hold parts in place before final welding; and knots relate more to fabric or rope applications rather than welding defects. Each of these terms has its specific context, but none describes welding voids or holes like porosity does.