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Wiring Methods and Materials Flashcards

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

Read the first 6 Wiring Methods and Materials flashcards as text

  1. What is EMT commonly called in the field?

    Answer: Thin-wall conduit

    EMT (Electrical Metallic Tubing) is commonly called thin-wall conduit due to its lighter wall thickness compared to RMC.

  2. What is the purpose of a conduit body (LB, LL, LR)?

    Answer: To change direction and provide access to conductors

    Conduit bodies are used to change the direction of a conduit run and provide access to conductors for pulling and maintenance.

  3. How is armored cable (Type AC) different from metal-clad cable (Type MC)?

    Answer: MC has an aluminum bonding strip; AC uses an internal bare wire that provides fault return

    Type MC cable contains an insulated equipment grounding conductor, while Type AC relies on an aluminum bonding strip inside the armor for fault current return.

  4. What is the minimum bending radius for 1-inch EMT?

    Answer: 6 inches

    The NEC requires a minimum bending radius of 6 times the internal diameter for EMT to prevent conductor damage.

  5. Which wiring method is specifically designed for use in wet or damp locations exposed to weather?

    Answer: UF cable

    Underground feeder (UF) cable is designed for direct burial and wet or damp locations, unlike standard NM cable.

  6. What is the maximum number of 90-degree bends allowed in a single conduit run between pull points?

    Answer: 4

    The NEC limits conduit runs to a maximum of 360 degrees of total bends (equivalent to four 90-degree bends) between pull points.