Branch Circuits & WiringQuestion 141 of 521
Rigid metal conduit (RMC) must be securely fastened within what distance of each outlet box, junction box, or termination?
a.2 ft
b.3 ft
c.5 ft
d.6 ft
Explanation
Section 344.30(A) requires RMC to be securely fastened within 3 ft of each box, cabinet, or fitting. Support intervals along the run then follow Table 344.30(B). 2 ft is stricter than the code minimum, while 5 and 6 ft exceed the required fastening distance.
Law Reference: 2023 NEC §344.30(A)Practice all 521 questions free — no signup required.
Related questions on this topic
- Between pull points (for example, from box to box), the total number of bends in one run of EMT must not exceed the equivalent of how many degrees?
- Liquidtight flexible metal conduit (LFMC) must be securely fastened within what distance of each box, cabinet, or fitting where the conduit is not fished?
- Along its length, liquidtight flexible metal conduit (LFMC) must be supported at intervals not exceeding what distance?
- For 1/2-inch through 3/4-inch trade size rigid metal conduit (RMC), what is the maximum spacing between supports on a straight horizontal run per Table 344.30(B)?
- For 1/2-inch through 1-inch trade size rigid PVC conduit, what is the maximum support spacing per Table 352.30?
- Expansion fittings for rigid PVC conduit must be provided to compensate for thermal expansion and contraction where the length change is expected to be at least how much?
Last reviewed: · editorial process
PrepPass Editorial Team · Verified against California CSLB C-10 Electrical Trade Examination · How we review