NM CID ES-1 Practice Questions - New Mexico CID ES-1 Electrical Signs And Outline Lighting Examination Exam

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NEC 600.9(D) requires wet-location sign and outline-lighting equipment that is not listed watertight to have drain holes. Those drain holes shall not be larger than 1/2 inch or smaller than which size?

1/8 inch 3/4 inch 3/8 inch 1/4 inch

Correct Answer:

1/4 inch

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