Practice Test Geeks(E2) E2 Commercial Electrical Inspector Practice Test
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Special Occupancies Flashcards

7 cards from real E2 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. Under NEC Article 547 for agricultural buildings, an equipotential plane must be installed in areas where:

    Answer: Livestock are housed and a concrete floor with metal equipment exists

    NEC 547.10 requires equipotential planes in concrete floor areas of livestock confinement buildings to prevent stray voltage from harming animals.

  2. In a marina covered by NEC Article 555, shore power receptacles rated 30 amperes or less must be protected by:

    Answer: GFCI protection

    NEC 555.19(B)(1) requires GFCI protection for 15A and 20A, 125V shore power receptacles at marinas, and leakage current interrupters for 30A and larger.

  3. Under NEC Article 550, a mobile home service equipment must be rated at a minimum of:

    Answer: 100 amperes, 120/240 volts

    NEC 550.32(C) requires mobile home service equipment to be rated at not less than 100 amperes, 120/240 volts.

  4. In an RV park per NEC Article 551, each recreational vehicle site with electrical supply must have at minimum a:

    Answer: 30-ampere, 120-volt supply

    NEC 551.71 requires that each RV site with electrical supply provide at minimum a 30-ampere, 125-volt receptacle.

  5. Under NEC Article 553, a floating building must have its electrical service disconnecting means located:

    Answer: On the building adjacent to the gangway or on the dock

    NEC 553.7 requires the disconnecting means for a floating building to be on the building adjacent to the gangway or on the dock to allow shore-side disconnect in an emergency.

  6. NEC Article 547 requires that in agricultural buildings, all equipment within the equipotential plane must be bonded to the plane using a minimum conductor size of:

    Answer: 8 AWG copper

    NEC 547.10(B) requires bonding conductors for equipotential planes to be at least 8 AWG copper to ensure reliable low-impedance bonding.

  7. Under NEC Article 555, the electrical system for a marina must include ground fault protection for which equipment?

    Answer: Feeders and branch circuits supplying receptacles and electric equipment in or on floating structures

    NEC 555.3 requires ground fault protection for feeders and branch circuits supplying receptacles and electrical equipment in or on floating structures or at the water's edge.