Limited Energy License Practice Exam

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Boxes that enclose devices supplied by 12 AWG or 10 AWG conductors must have an internal depth of not less than what measurement?

1 in.

1 3/16 in.

The correct measurement for boxes that enclose devices supplied by 12 AWG or 10 AWG conductors is 1 3/16 inches in internal depth. This specific depth is important for ensuring that there is adequate space for handling the larger gauge conductors and any necessary splices or connections within the box.

Using the correct internal depth allows for proper installation and maintenance without crowding the conductors, which can lead to overheating or other electrical issues. This standard aligns with the National Electrical Code (NEC) requirements, which are designed to promote safety and functionality in electrical installations. Adequate space is essential not just for the conductors themselves but also for ensuring that any insulation, wire nuts, or connections can be safely accommodated without risk of damage or compromise.

1 1/2 in.

2 in.