Red Seal Electrician Practice
Wiring and componentsQuestion 714 of 1506

How many wire ends or component leads should be put under one screw on a terminal strip?

  1. Only one, with no exceptions
  2. As many as will fit
  3. No more than two
  4. Exactly four
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Correct answer: No more than two

More than two ends under one screw makes a messy connection and may stress the screw terminal.

Source: Lessons in Electric Circuits I: DC (Kuphaldt), 7.5: Building Series-Parallel Resistor Circuits

Practice wiring and components

Questions last reviewed: 18 October 2026