Practice Test Geeks(CEI) Certified Electrical Inspector Practice Test
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CEI Service Entrance & Metering Inspection Flashcards

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

Read the first 6 CEI Service Entrance & Metering Inspection flashcards as text

  1. During a meter socket inspection, an inspector finds the meter enclosure is not bonded to the service-entrance neutral. What NEC section requires this bonding?

    Answer: NEC 250.92

    NEC 250.92 requires that the service enclosures, including meter enclosures, be bonded to the service neutral (grounded conductor) at the service entrance.

  2. What is the purpose of the main bonding jumper at the service equipment?

    Answer: To connect the neutral conductor to the equipment grounding conductor

    Per NEC 250.24(B), the main bonding jumper connects the grounded (neutral) conductor to the equipment grounding conductor and service equipment enclosure at the service disconnect.

  3. An inspector finds a service rated at 200A with a service-entrance conductor of 2/0 AWG copper. Under NEC 310.15, is this conductor adequately sized?

    Answer: Yes, 2/0 AWG copper is adequate for 200A under the 83% rule

    NEC 310.15(B)(7) permits 2/0 AWG copper (rated 175A) to serve as a 200A service conductor when it supplies a dwelling unit service.

  4. Which of the following is NOT a permitted grounding electrode per NEC 250.52?

    Answer: A steel well casing that is not bonded to water supply piping

    NEC 250.52(A) lists acceptable grounding electrodes; a steel well casing alone, without meeting specific criteria for other electrode types, is not a listed grounding electrode.

  5. During a service entrance inspection, what is the required minimum burial depth for a service lateral installed in rigid metal conduit (RMC)?

    Answer: 12 inches

    Per NEC Table 300.5, RMC and IMC installed as direct-buried service laterals require a minimum cover of 6 inches, but when under a building slab or in RMC, 6 inches is the minimum; general direct burial of RMC requires only 6 inches — however standard NEC Table 300.5 specifies 6 inches for RMC.

  6. What is the minimum ampere rating of a service disconnecting means for a one-family dwelling, per NEC 230.79?

    Answer: 100 amperes

    NEC 230.79(C) requires the service disconnecting means for a one-family dwelling to have a rating of not less than 100 amperes, 3-wire.