Certified Welding Inspector Practice Exam

Disable ads (and more) with a membership for a one time $2.99 payment

Prepare for the Certified Welding Inspector Exam. Study with interactive quizzes and detailed explanations. Enhance your knowledge to succeed!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

What is meant by arc strike in welding terms?

A definition for excessive heat affecting metal surfaces
A term for the welding arc losing its stability
A localized remelted metal or change on a surface caused by an arc
A signal indicating the completion of a weld

The correct answer is: A localized remelted metal or change on a surface caused by an arc

In welding terminology, arc strike refers to a localized remelted area or a change in the surface caused by an arc. This phenomenon occurs when the welding electrode makes contact with the base material or when the arc is improperly initiated or maintained, leading to an unintended melting of the base material. The remelted metal may display characteristics such as altered grain structure, which can impact the mechanical properties of the weld and the base material itself. Understanding this concept is crucial for welders and inspectors alike, as arc strikes can contribute to defects such as improper heat affected zones or loss of structural integrity, ultimately affecting the performance of the welded joint. Recognizing and controlling this aspect in welding practice can help improve the quality and reliability of welds.