TL;DR

Study the assessment and management of eye, ear, nose, throat, and facial emergencies. These specialized assessments require specific knowledge tested on the Journeyman Electrician License Exam.

By Valenke Exam Prep Team·Last updated 2026-06-03

Free Equipment Grounding Conductors Practice Questions

Journeyman Electrician License Exam · Grounding & Bonding

This module covers Equipment Grounding Conductors as part of the Grounding & Bonding section, testing your understanding of core concepts and their practical application.

Exam	Journeyman Electrician License Exam
Pass Rate	55%
Duration	240 minutes
Module	Equipment Grounding Conductors

Why Equipment Grounding Conductors matters

Equipment Grounding Conductors is one of the most tested NEC topics because improper grounding and protection cause electrical fires and fatalities.

Sample Practice Questions (5)

1. A 100-ampere branch circuit is wired with 3 AWG THHN copper conductors (increased from 1 AWG for voltage drop). Per NEC 250.122(B), what is the minimum size copper EGC?

8 AWG
6 AWG
10 AWG
4 AWG

2. Per NEC 250.119, equipment grounding conductors larger than 6 AWG that are insulated or covered shall be identified at the time of installation at each end and every point where the conductor is accessible. This is permitted to be done by:

Only by using factory-applied green insulation
Stripping the insulation or covering from the entire exposed length, marking with green tape, or green adhesive labels
Using white tape to distinguish from neutrals
No marking is needed for conductors larger than 6 AWG

3. Per NEC Table 250.122, the minimum size copper equipment grounding conductor for a circuit protected by a 400-ampere overcurrent device is:

4 AWG
3 AWG
2 AWG
1 AWG

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4. Per NEC 250.122(A), EGC size is based on the rating of the overcurrent device ahead of the circuit, NOT on the ampacity of the circuit conductors. A 40-ampere circuit breaker protects a circuit wired with 8 AWG THHN copper conductors. Per Table 250.122, the minimum copper EGC is:

14 AWG
12 AWG
10 AWG
8 AWG

5. Per NEC Table 250.122, the minimum size copper EGC for a circuit protected by a 200-ampere overcurrent device is:

8 AWG
6 AWG
4 AWG
2 AWG

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Frequently Asked Questions

How many Equipment Grounding Conductors questions are on the Journeyman Electrician License Exam?▼

The Grounding & Bonding section, which includes Equipment Grounding Conductors, typically represents a significant portion of the exam. Focus on understanding core concepts rather than memorizing exact question counts, as the exam uses adaptive testing.

What is the best way to study Equipment Grounding Conductors?▼

Use active recall and spaced repetition rather than passive reading. Practice with realistic exam questions, review explanations for both correct and incorrect answers, and focus on understanding the reasoning behind each concept.

Is Equipment Grounding Conductors one of the harder sections on the exam?▼

Yes, Equipment Grounding Conductors is considered challenging because it requires applying multiple code articles simultaneously. Practice with scenario-based questions that require you to reference specific NEC requirements.