Practice Test Geeks(E2) E2 Commercial Electrical Inspector Practice Test
← All E2 Flashcard Decks

General Requirements and NEC Flashcards

7 cards from real E2 practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 General Requirements and NEC flashcards as text

  1. Under the NEC, what is the minimum headroom required in front of electrical equipment rated 600V or less that requires examination, adjustment, servicing, or maintenance while energized?

    Answer: 6 feet

    NEC 110.26(A)(1) requires a minimum of 6 feet of headroom for working space in front of electrical equipment rated 600V or less.

  2. Which NEC article governs the installation of conductors and equipment in locations where fire or explosion hazards may exist due to flammable gases?

    Answer: Article 501

    NEC Article 501 specifically covers Class I locations where flammable gases or vapors may be present in the air in quantities sufficient to produce explosive or ignitable mixtures.

  3. When conductors of different systems are installed in the same raceway, what is a key NEC requirement?

    Answer: All conductors must have the same voltage rating as the highest voltage present

    Per NEC 300.3(C)(1), all conductors in a raceway must have an insulation rating equal to at least the maximum circuit voltage present.

  4. The NEC defines a 'qualified person' in Article 100 as someone who has:

    Answer: Skills and knowledge related to the construction and operation of electrical equipment and has received safety training to recognize and avoid the hazards involved

    NEC Article 100 defines a qualified person based on skills, knowledge, and safety training—not solely on years of experience or licensing.

  5. Per NEC 210.8, GFCI protection is required for all 125V, single-phase, 15A and 20A receptacles in commercial bathrooms because:

    Answer: The NEC requires it for all commercial occupancies regardless of location

    NEC 210.8(B) requires GFCI protection for receptacles in commercial bathrooms without regard to proximity to water sources.

  6. What does NEC Article 110.14 address regarding electrical connections?

    Answer: Conductor termination and splicing requirements

    NEC 110.14 covers the requirements for electrical connections, including the use of listed devices, proper termination methods, and temperature ratings for conductors and terminals.

  7. Under the NEC, which of the following is NOT a recognized wiring method for use in commercial buildings?

    Answer: Open wiring on insulators in concealed spaces

    Open wiring on insulators (Article 398) is generally restricted to industrial or agricultural settings and is not a recognized method for concealed spaces in commercial buildings.