Practice Test Geeks(EETC) Electrical Technician Certification Practice Test
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Conduit & Raceway Systems Flashcards

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

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  1. According to NEC Chapter 9, Table 1, what is the maximum percentage of conduit cross-sectional area that conductors may occupy when three or more conductors are installed?

    Answer: 40%

    NEC Chapter 9, Table 1 limits conduit fill to 40% of the cross-sectional area when three or more conductors are installed to allow for heat dissipation and future wire pulling.

  2. Which conduit type has the thinnest wall and is NOT suitable for direct burial in soil without additional protection?

    Answer: Electrical Metallic Tubing (EMT)

    EMT has the thinnest wall of the metallic conduit types and is not listed for direct burial in soil; it is intended for surface or concealed installations in protected locations.

  3. What is the maximum total degrees of bends permitted in a single conduit run between pull points according to the NEC?

    Answer: 360°

    The NEC limits the total bends between pull points to 360° (equivalent to four 90° bends) to ensure conductors can be pulled without excessive damage.

  4. Liquidtight Flexible Metal Conduit (LFMC) is most commonly specified for:

    Answer: Final connections to motors and other vibrating equipment

    LFMC is designed to provide a flexible, liquidtight connection ideal for motor terminations and equipment subject to vibration, movement, or exposure to liquids.

  5. Which type of conduit is specifically listed and approved for direct burial in soil and concrete encasement?

    Answer: Rigid PVC Conduit (Schedule 40)

    Rigid PVC conduit (Schedule 40 and Schedule 80) is listed for direct burial in soil and concrete encasement, making it a common choice for underground runs.

  6. Per NEC Chapter 9, Table 1, when a conduit contains only one conductor, the maximum permitted fill is:

    Answer: 53%

    The NEC allows a single conductor to occupy up to 53% of the conduit's cross-sectional area because heat dissipation is less of a concern with only one conductor.

  7. Surface Metal Raceway (such as Wiremold) differs from standard conduit primarily because it:

    Answer: Has a removable cover allowing easy access to installed conductors

    Surface metal raceway features a snap-on or screwed cover that can be removed at any point, making it ideal for retrofit installations where access to conductors is needed without conduit pulls.