NM Residential Electrical Inspector Practice Questions - New Mexico CID Residential Electrical Inspector Examination Exam

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Per NEC 2020 110.12(A), unused openings in boxes, raceways, and cabinets, other than those intended for the operation of equipment, shall be which of the following?

Left open if they are smaller than ½ inch Covered with tape Effectively closed Filled with expanding foam

Correct Answer:

Effectively closed

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