AG Mechanics CDE Practice Exam 2026 - Free AG Mechanics Practice Questions and Study Guide

Question: 1 / 400

The practice of uniting metal parts by heating or compression is called:

arc

bead

tensile strength

welding

Welding is the process of joining metal parts by heating or compression. This involves melting separate pieces of metal and fusing them together. Option A Arc is a welding process that uses an electric current to produce an intense and controllable heat source for welding. Option B: Bead is the material deposited by a welding or brazing process. Option C: Tensile strength is the maximum stress that a material can withstand before failing under tension. While tensile strength is important in welding, it does not refer specifically to the process of joining metal parts. Therefore, option D: welding is the best answer.

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