Five real 2026 NEC questions from the same bank VoltMark uses — free, no signup. Every answer shows you where the rule lives, because on exam day the book is open and finding it is the skill.
Which dwelling receptacle below must have GFCI protection?
Garages are on the 210.8(A) list, so garage receptacles in a dwelling require GFCI protection.
Which of the following shall NOT be used as a grounding electrode?
250.52(B)(1) states that metal underground gas piping systems shall not be used as grounding electrodes; aluminum is likewise prohibited by 250.52(B)(2), per 250.52(B).
For a ceiling paddle fan supported solely by the outlet box, the box is required to be which of the following?
314.27(C): outlet boxes used as the sole support of a ceiling-suspended (paddle) fan shall be listed, and shall be marked by their manufacturer on the interior as suitable for the purpose.
A branch circuit serves a 64 A noncontinuous load. The minimum standard overcurrent device rating permitted is:
Required (noncontinuous): 64.0 A. The smallest standard 240.6(A) rating at or above that is 70 A (per 210.20(A)).
Unless a recessed luminaire is identified as Type IC, thermal insulation must not be installed above it or within which distance of its enclosure?
410.116(B) requires thermal insulation to be kept 75 mm (3 in.) from a recessed luminaire's enclosure, wiring compartment, ballast, transformer, LED driver, or power supply unless the luminaire is identified as Type IC.
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Practice questions are VoltMark's own, written against the 2026 NEC. VoltMark is not affiliated with, endorsed by, or sponsored by NFPA, PSI, TDLR, or any state or local licensing authority. Always verify against the edition your jurisdiction has adopted.
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