Practice Test Geeks(CET) Certified Elevator Technician Practice Test
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Traveling Cables & Wiring Methods Flashcards

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  1. Which NEC article specifically governs electrical wiring and equipment for elevators, dumbwaiters, escalators, and moving walks?

    Answer: NEC Article 620 — Elevators, Dumbwaiters, Escalators, Moving Walks, Platform Lifts, and Stairway Lifts

    NEC Article 620 is the dedicated article covering all electrical requirements for vertical and horizontal transportation equipment including elevators, escalators, and moving walks.

  2. Per NEC Article 620, which wiring method is approved for use inside elevator hoistways?

    Answer: Rigid metal conduit (RMC), intermediate metal conduit (IMC), or electrical metallic tubing (EMT)

    NEC Article 620 requires conductors in hoistways to be installed in metal raceways such as RMC, IMC, or EMT to protect wiring from the mechanical hazards present in the hoistway environment.

  3. Which of the following wiring methods is NOT permitted in an elevator machine room per NEC Article 620?

    Answer: Non-metallic sheathed cable (NM-B, commonly called Romex)

    NEC Article 620 prohibits non-metallic sheathed cable in elevator machine rooms; only metallic raceways and other specifically permitted methods are allowed.

  4. Per NEC 620.24, the elevator pit lighting circuit must be:

    Answer: A separate lighting circuit with a disconnect means accessible at the pit entrance

    The pit must have a dedicated lighting circuit with a disconnect accessible at the pit entrance so technicians can control pit lighting before entry, ensuring they can see safely without depending on others.

  5. Per NEC 620.22, elevator car lighting circuits must not exceed which voltage rating?

    Answer: 120V to protect car occupants from high-voltage hazards

    NEC 620.22 limits elevator car lighting to 120V maximum because the car is an occupied space, and lower voltage reduces shock hazard risk to passengers and technicians.

  6. Per NEC 620.51, the main line disconnecting means for elevator equipment must be located:

    Answer: In the machine room or machinery space, accessible only to qualified personnel

    NEC 620.51 requires the main disconnecting means to be in the machine room or machinery space so that only qualified elevator technicians can de-energize the equipment.

  7. When sizing elevator feeder conductors supplying multiple elevator motors per NEC 620.13, the ampacity must be based on:

    Answer: 125% of the largest motor nameplate current plus 100% of all remaining motor nameplate currents

    NEC 620.13 requires feeder conductors to carry 125% of the largest motor's nameplate current (to account for starting current) plus 100% of all other motor currents.