Which statement about multiple conductors under a single terminal is true?

• A. They must be capped with tape
• B. They must be labeled and marked
• C. They can be left unmarked
• D. They should be twisted together

Answer: (B)

When several conductors share a single terminal, you must identify each conductor so you can tell them apart during installation, testing, or future service. Labeling and marking ensures you know which wire belongs to which circuit or function, preventing mix-ups if the terminal is removed or reconnected later. Durable identifiers—such as tags, color-coded sleeves, or printed marks—keep the information clear even under heat or over time.

Taping the wires or leaving them unmarked isn’t reliable or up to standard, and twisting conductors together can damage the conductors or the terminal and create a poor, unsafe connection.