Practice Test Geeks(InterNACHI) International Association of Certified Home Inspectors Practice Test
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Electrical Systems & Safety Flashcards

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

Read the first 7 Electrical Systems & Safety flashcards as text

  1. According to NEC, GFCI protection is required in which of the following locations?

    Answer: Bathroom receptacles

    NEC mandates GFCI protection for all bathroom receptacles due to the proximity of water sources.

  2. What is the purpose of a bonding jumper in an electrical system?

    Answer: To connect grounded metal parts to ensure a low-impedance fault path

    A bonding jumper connects all metallic components of the electrical system to ensure a reliable path for fault current to flow back to the source.

  3. What wire gauge is required for a 20-amp branch circuit using copper conductors?

    Answer: 12 AWG

    A 20-amp circuit requires 12 AWG copper conductors, as 14 AWG is only rated for 15-amp circuits.

  4. A home inspector finds a 15-amp breaker protecting a circuit with 12 AWG wire. This is:

    Answer: Acceptable — the wire exceeds the breaker's ampacity rating

    Using 12 AWG wire on a 15-amp breaker is acceptable because the wire can handle more current than the breaker will allow.

  5. Which of the following describes a 'floating neutral' condition at a sub-panel?

    Answer: The neutral wire is connected to the ground bus, creating a fault path

    At a sub-panel, a floating neutral means the neutral bus is incorrectly bonded to the ground bus, which should only occur at the main panel.

  6. What is the maximum height at which a wall switch controlling a light may be installed per accessibility standards?

    Answer: 48 inches

    ADA and accessibility guidelines recommend wall switches be installed no higher than 48 inches above the finished floor.

  7. When inspecting a service entrance, what does the inspector look for at the weatherhead?

    Answer: Adequate drip loop to prevent water from entering the conduit

    A drip loop is essential at the weatherhead to ensure rainwater drips off the conductors before reaching the entry point rather than running into the conduit.