Branch Circuits & WiringQuestion 136 of 521
Electrical metallic tubing (EMT) must be securely fastened within what distance of each outlet box, junction box, or fitting?
a.3 ft
b.4 ft
c.5 ft
d.6 ft
Explanation
Section 358.30(A) requires EMT to be securely fastened in place within 3 ft of each box, cabinet, or termination. It must also be supported at intervals not exceeding 10 ft. 4, 5, and 6 ft all exceed the 3-ft fastening distance from boxes.
Law Reference: 2023 NEC §358.30(A)Practice all 521 questions free — no signup required.
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