Millwright Level 1 Practice Exam

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Is it true that carbon arc cutting can trim or cut parts made of ferrous and some non-ferrous metals?

  1. True

  2. False

  3. Only for ferrous metals

  4. Only for non-ferrous metals

The correct answer is: True

Carbon arc cutting is indeed capable of trimming or cutting parts made of both ferrous and some non-ferrous metals. This process utilizes an electric arc struck between a carbon electrode and the workpiece to generate intense heat, which melts the metal. The molten metal is then blown away by a stream of air, effectively cutting the material. The abilities of carbon arc cutting make it versatile for different types of metals. For ferrous metals, such as steel and cast iron, the process is highly effective. When it comes to non-ferrous metals, certain conductive metals (like aluminum and copper) can also be cut using this method, although the technique may require adjustments specific to the material characteristics. Understanding this process is essential for various applications in fabrication, maintenance, and repair in millwright work, making it a valuable skill for practitioners in the field.

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