Master Electrician 2 Exam Questions & Answers 2026 (1–10)

Question 1

The NEC is organized into chapters. Which chapter covers wiring methods and materials?

TheoryPractice · Accepted Answer

Chapter 3. NEC Chapter 3 covers Wiring Methods and Materials (Articles 300–392). Chapter 1 covers General Requirements, Chapter 5 covers Special Occupancies, and Chapter 7 covers Special Conditions.

Question 2

NEC Article 100 is primarily dedicated to which of the following?

TheoryPractice · Accepted Answer

Definitions. Article 100 contains definitions of terms used throughout the NEC. Understanding these definitions is essential because they govern how other code requirements are applied.

Question 3

The NEC defines the Authority Having Jurisdiction (AHJ) as the organization, office, or individual responsible for what?

TheoryPractice · Accepted Answer

Enforcing and interpreting the code requirements. The AHJ is the entity empowered to enforce the NEC — typically the local building or electrical inspector. They interpret requirements and can approve or reject installations.

Question 4

Under NEC 90.4, if equipment or materials are not covered by the NEC, who is authorized to allow their use?

TheoryPractice · Accepted Answer

The Authority Having Jurisdiction. NEC 90.4 gives the AHJ authority to approve equipment or installations not specifically addressed by the Code, provided the installation is judged to be safe.

Question 5

What is the primary purpose of the NEC as stated in Article 90?

TheoryPractice · Accepted Answer

The practical safeguarding of persons and property from hazards arising from the use of electricity. NEC 90.1 states the purpose is the practical safeguarding of persons and property. The Code is not a design specification or instruction manual, but a safety document.

Question 6

Which of the following installations is specifically NOT covered by the NEC?

TheoryPractice · Accepted Answer

Ships, watercraft, railway rolling stock, aircraft. NEC 90.2(B) lists several installations outside the Code's scope, including ships, watercraft, railway rolling stock, and aircraft, which are governed by separate standards.

Question 7

When the NEC requires that equipment be 'listed,' it means the equipment has been:

TheoryPractice · Accepted Answer

Evaluated by a nationally recognized testing laboratory and found to meet specific standards. Listed equipment has been examined by an NRTL (such as UL or ETL) and found to meet applicable product standards. The NEC strongly prefers listed equipment because it provides a documented baseline of safety.

Question 8

According to NEC 110.3(B), after listed or labeled equipment is installed, it must be used:

TheoryPractice · Accepted Answer

In accordance with its listing or labeling instructions. NEC 110.3(B) requires that listed and labeled equipment be installed and used in accordance with the instructions included in the listing or labeling. Deviating from those instructions violates the Code.

Question 9

Before beginning most electrical installations, a master electrician typically must obtain:

TheoryPractice · Accepted Answer

An electrical permit from the local AHJ. Most jurisdictions require an electrical permit (issued by the AHJ) before work begins. The permit triggers the inspection process that ensures code compliance.

Question 10

NEC 90.4 grants authority to whom to interpret the NEC requirements and approve equipment or wiring that is not specifically covered by the Code?

TheoryPractice · Accepted Answer

The Authority Having Jurisdiction (AHJ). NEC 90.4 vests interpretive authority and the power to approve unlisted equipment or alternative methods in the Authority Having Jurisdiction. The AHJ may grant 'special permission' (written consent) for installations not specifically covered by the Code.

Master Electrician 2 Exam Questions & Answers 2026 (1–10)

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