The exam content below contains notations in ORANGE alerting you to code sections shown in the PSI bulletin that have been added, removed or replaced in the 2020 NEC.
| NEC Section | Content Areas | # of Questions |
|---|---|---|
| 90 | Introduction | 1 |
| 100 – 110 | General Requirements | 3 |
| 200 – 225, 242 | Wiring & Protection (280-285 replaced by 242) | 2 |
| 230 | Services | 2 |
| 240 | Overcurrent Protection | 4 |
| 250 | Grounding & Bonding | 4 |
| 300 – 398 | Wiring Methods | 8 |
| 400 – 427, 455 – 480 | Electrical Equipment | 4 |
| 430 – 450 | Motors, HVAC, Generators & Transformers | 4 |
| 490 | Equipment Over 1,000 volts, Nominal (article title changed in the 2014 NEC) | 2 |
| 500 – 516 | Hazardous Locations | 3 |
| 517 – 590 | Special Occupancies | 2 |
| 600 – 695 | Special Equipment | 3 |
| 700 – 702 | Emergency & Standby Systems | 3 |
| 705 – 770 | Special Conditions (780 removed in the 2008 NEC) | 2 |
| 800 – 840 | Communication Systems (840 added in the 2011 NEC) | 1 |
| Washington Laws & Rules (RCW and WAC) | 20 | |
| General Trade Knowledge & Theory | 6 | |
NOTE: Our study material for this exam will NOT include sample questions for “Major Load Calculations” and “General Trade Knowledge” specifically because they can not be created from code books or statutes. This subject matter CAN be extracted from Ugly's Reference, Chapter 9 and Annex D of the NEC.
From the PSI bulletin: "It is okay to use ANY original copyrighted material (including material that contains questions and answers)"
We highly recommend that you purchase one of the reference books above to study for your exam. Each book is a comprehensive subject index to the NEC. They provide an even faster way to look up answers in the code and are far more detailed than the index at the end of the code book.
Reference #2 above contains practical applications of the NEC such as Ohm's Law, series/parallel circuits, voltage drop, load calculations, motor phases, impedance, inductance and math formulas you are expected to know. “Basic Knowledge” is covered in the exam but detailed subjects are assumed and not specifically called out in the bulletin.
Questions are sourced from the NEC and Washington statutes shown above.
Informaion is included about additional free sample questions and links to essential sources of electrical calculations to assist in drilling for your exam.
Additional bonus questions are included from Ugly's Electrical Reference (2020) and The American Electricians' Handbook, 17th Ed.
The approx. number of practice questions in this package: 2,860
