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Article 100-110 Quiz02

This quiz includes 20 questions selected from NEC Articles 100 to 110. The questions are chosen randomly, with no repeats from other quizzes—unless a particular question is used again on purpose because it relates to more than one topic, such as both cable ampacity and cable application.

If you spot any issues or have suggestions, you’re welcome to report questions or review the quiz. Your feedback matters, and contributions to help improve and refine the questions and quizzes are always appreciated.

The AHJ oversees code compliance.

1 / 20

What is an "Authority Having Jurisdiction (AHJ)"?

The interrupting rating must be sufficient to handle the maximum current the equipment may encounter without failure.

2 / 20

Equipment intended to interrupt current at other than fault levels shall have an interrupting rating at nominal circuit voltage _______________ the current that must be interrupted.

Safety is a primary concern here.

3 / 20

What does "Dead-Front" mean in electrical equipment?

It ensures electrical continuity.

4 / 20

What does "Bonded" mean?

Ampacity involves continuous current limits.

5 / 20

What does "Ampacity" refer to?

Think about processes that don’t need human action.

6 / 20

How is "Automatic" defined in Article 100?

Duration is key here.

7 / 20

How is "Continuous Load" defined?

The minimum working distance is determined by the voltage and whether live or grounded parts are present on the opposite side of the workspace.

8 / 20

A 120-208V 3-phase panel with exposed live parts on one side, and no live or grounded parts on the other side of the working space, must have a minimum clear working distance of _______________ in front of the panel.

This device protects against overcurrent.

9 / 20

What is a "Circuit Breaker"?

This definition applies specifically to conductors used in overhead service installations.

10 / 20

The service conductors between the terminals of the service equipment and a point usually outside the building, clear of building walls, where joined by tap or splice to the service drop or overhead service conductors, is defined as what?

This type of enclosure is designed for ease of access to the electrical components it houses.

11 / 20

A _______________ is an enclosure designed for surface mounting that has swinging doors or covers secured directly to and telescoping with the walls of the enclosure.

Approval requires jurisdictional consent.

12 / 20

What is the meaning of "Approved" in NEC terminology?

This relates to ease of physical access for maintenance.

13 / 20

What does the term "Accessible" as applied to equipment mean?

The key is the device's capacity to handle overcurrent within its operational range, which starts from its specified rating.

14 / 20

A branch-circuit OCPD is a device capable of providing protection for service, feeder, and branch circuits and equipment over the full range of over-currents between its _______________ and its interrupting rating.

An attachment plug is commonly used to connect a flexible cord to a power source.

15 / 20

An attachment plug is a(n):

The interrupting rating must be sufficient to handle the maximum current the equipment may encounter without failure.

16 / 20

Equipment intended to interrupt current at other than fault levels shall have an interrupting rating at nominal circuit voltage _______________ the current that must be interrupted.

This involves the final section of a circuit.

17 / 20

What does "Branch Circuit" refer to?

Think about photovoltaic systems.

18 / 20

What is an "Array" as defined in Article 100?

For wide switchgear and control panels, the NEC mandates adequate access to ensure safety and compliance with clearance requirements.

19 / 20

On switchgear and control panels exceeding _______________ in width, there shall be one entrance at each end of the equipment.

Focus on detecting and mitigating electrical arcs.

20 / 20

What is the primary function of an "Arc-Fault Circuit Interrupter (AFCI)"?

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