A bathroom has a non-metallic raceway installed for the electrical wiring. The raceway is to be installed in a wall that is subject to moisture. According to the 2024 IRC, what is the minimum type of raceway that can be used in this application?
- AType NM-B
- Type MC
- CType UF-B
- DType GFCI
Exam tip
Be familiar with the specific raceway types allowed for different environments as outlined in the code.
Why B is correct
The correct answer is Type MC. Section 330.30 of the 2024 IRC specifies that Type MC raceway is suitable for use in walls subject to moisture. Options a, c, and d are incorrect as they are not suitable for installations in moisture-prone areas.