Red Seal Electrician Practice
Wiring and componentsQuestion 719 of 1506

Why is it good to make wiring and layout clear and neat, even if the circuit would work anyway?

  1. It raises the circuit voltage
  2. It lets the circuit run without a power source
  3. It lowers the resistance of the wires and the supply voltage
  4. It helps the person who must modify or troubleshoot it later
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Correct answer: It helps the person who must modify or troubleshoot it later

Layout seldom affects DC operation, but it matters a lot for later maintenance.

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