The exam content below contains notations in ORANGE alerting you to code sections shown in the PSI bulletin (dated 4/22/21) that have been added, removed or replaced in the 2020 NEC.
| NEC Section | Exam Content (from PSI bulletin) | # of Questions |
|---|---|---|
| 90 | Introduction | 1 |
| 100 – 110 | General Requirements | 2 |
| 200 – 225, 242 | Wiring and Protection (280-285 replaced by 242) | 3 |
| 230 | Services | 4 |
| 240 | Overcurrent Protection | 4 |
| 250 | Grounding and Bonding | 5 |
| 300 – 398 | Wiring Methods | 7 |
| 400 – 427, 455 – 480 | Electrical Equipment | 2 |
| 430 – 450 | Motors, HVAC, Generators and Transformers | 6 |
| 490 | Equipment Over 1,000 volts, Nominal (article title changed in the 2014 NEC) | 2 |
| 500 – 516 | Hazardous Locations | 1 |
| 600 – 695 | Special Equipment | 1 |
| 705 – 770 | Special Conditions (780 removed in the 2008 NEC) | 2 |
| Washington Laws and Rules (RCW and WAC) | 20 | |
| General Trade Knowledge and Theory | 10 | |
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.
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.
The book above contains practical applications of the NEC such as Ohm‘s Law, series/parallel circuits, voltage drop, load calculations, motor phases, impediance, inductance and math formulas you are expected to know. “Basic Knowledge” and “Electrical Calculations” are subjects covered in the exam and are assumed (most likely not listed as a subject for electrical and mechanical exams of all types).
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, 16th Ed.
The approx. number of practice questions in this package: 2,370
