Practice Test Geeks(E2) E2 Commercial Electrical Inspector Practice Test
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General Requirements and NEC Flashcards

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Read the first 7 General Requirements and NEC flashcards as text

  1. Per NEC 110.27, electrical equipment in locations accessible to unqualified persons must be:

    Answer: Guarded by approved enclosures, location elevation, or physical barriers

    NEC 110.27 requires that live parts of electrical equipment operating at 50V or more be guarded against accidental contact by approved enclosures, by location, or by suitable partitions.

  2. What does NEC 240.4 require regarding overcurrent protection for conductors?

    Answer: Conductors must be protected at their ampacity or the next standard overcurrent device size up if within certain limits

    NEC 240.4 requires conductors to be protected at their ampacity; however, where the next standard device size is within specific limits (e.g., 800A or less), rounding up to the next standard size is permitted.

  3. The NEC requires that all unused openings in electrical enclosures be:

    Answer: Closed using approved fittings or closures

    NEC 110.12(A) requires that all unused openings in enclosures be effectively closed using fittings or closures to maintain the integrity of the enclosure.

  4. Per NEC 200.6, which of the following is the correct identification for a grounded (neutral) conductor larger than 6 AWG?

    Answer: White or gray marking at each end or at each accessible location

    NEC 200.6(B) allows conductors larger than 6 AWG to be identified as grounded conductors using white or gray marking at each end and at each accessible location.

  5. Under NEC 110.34, what is the minimum depth of working space required for equipment rated over 600V nominal in a commercial installation (Condition 2)?

    Answer: 6 feet

    NEC Table 110.34(A) requires a minimum working space depth of 6 feet for Condition 2 (grounded surfaces on one side) for equipment over 600V.

  6. The NEC requires that raceway systems used as equipment grounding conductors must be:

    Answer: Listed and meet the requirements of NEC 250.118

    NEC 250.118 specifies which wiring methods (raceways and cables) are recognized as equipment grounding conductors, and they must be listed types meeting those requirements.

  7. When a commercial building has multiple occupancies, NEC 230.2 generally requires:

    Answer: No more than one service per building with exceptions for large buildings, fire pumps, and other conditions

    NEC 230.2(A) permits only one service per building with specific exceptions for large-area buildings, different use voltages, reliability, fire pumps, and similar conditions.