Master electrician drill: Theory, definitions and plans

10 questions · Untimed · Worked answer after each question

Three-phase power, power factor, neutral current, Ohm’s law, transformer current and code definitions. Ten questions on the 2023 NEC, each with a worked answer that cites its section.

Line drawing of electrical floor plans, a digital multimeter with test leads and a calculator

Before you start

Keep your NEC handy. Questions follow the 2023 NEC and every answer cites its section.
Check each answer to see the worked solution before moving on. Checked answers cannot be changed.

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Create a free account to start. Every drill includes one free attempt. A master electrician pass unlocks every full timed exam and unlimited drills.

Original practice questions written for the NEC. Independent preparation, not affiliated with NFPA, ICC, PSI, Pearson VUE or any state board.