True or False: Two types of copper sheet are soft copper and hot-rolled copper.

• A. True
• B. False
• C. Not enough information
• D. Not applicable

Answer: (B)

Two copper sheet characteristics are used: how soft or hard the metal has been worked (the temper) and how it was produced (hot-rolled or cold-rolled). Soft copper refers to annealed copper with high ductility, suitable for forming. Hot-rolled describes a production method and the resulting sheet can still be in various tempers; it is not itself a separate type of sheet. In practice, you can have soft copper, half-hard, or hard copper, and you can have copper sheet produced by either hot-rolling or cold-rolling. So stating there are only two types—soft copper and hot-rolled copper—mixes these categories and isn’t accurate.