Many sheet-metal racks in the shop are clearly marked with the metal's gauge.

• A. False
• B. True
• C. Not always marked
• D. Only copper racks are marked

Answer: (B)

Markings on sheet-metal racks are a practical way to quickly identify thickness, helping you pick the right material and set up tools correctly. In a busy shop, racks labeled with the metal type and gauge let you avoid guessing and measure less, which speeds work and reduces the chance of mistakes that can affect bends, cuts, or overall part quality. This practice supports safer, more efficient operation because each gauge corresponds to a known thickness and recommended tooling settings. While not every rack may be clearly marked in every shop, many racks are, and that makes the statement true. These markings aren’t limited to copper—steel, aluminum, and other metals can be labeled by gauge to streamline material handling.