Which of the following is a typical color used for hot conductors in a 120/240V system?

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Multiple Choice

Which of the following is a typical color used for hot conductors in a 120/240V system?

Explanation:
Hot conductors are colored to indicate they are live and carry current. In a typical 120/240V split‑phase system, the two hot legs are black and red, which helps distinguish them from the neutral (white) and the equipment grounding conductor (green or bare). Blue can appear in some special cases (like certain three‑phase or traveler situations), but for a standard 120/240V circuit, black or red is the normal color for hot conductors. That’s why the correct choice is black or red.

Hot conductors are colored to indicate they are live and carry current. In a typical 120/240V split‑phase system, the two hot legs are black and red, which helps distinguish them from the neutral (white) and the equipment grounding conductor (green or bare). Blue can appear in some special cases (like certain three‑phase or traveler situations), but for a standard 120/240V circuit, black or red is the normal color for hot conductors. That’s why the correct choice is black or red.

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