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(04) Signs Master Electrician

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Washington State
Department of Labor & Industries

7273 Linderson Way SW
Tumwater, WA  98501
Phone:  (360) 902-5799
Exam Provider
PSI Services LLC
3210 East Tropicana
Las Vegas, NV  89121
Phone:  (855) 834-8751
Exam Type
Exam Content

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.

Content Areas
(from PSI bulletin)
# of
100 – 110General Requirements2
200 – 225, 242Wiring & Protection
(280-285 replaced by 242)
240Overcurrent Protection4
250Grounding & Bonding4
300 – 398Wiring Methods10
400 – 427,
455 – 480
Electrical Equipment2
430 – 450Motors, HVAC, Generators & Transformers2
600 – 695Special Equipment6
Washington Laws & Rules (RCW and WAC)20
General Trade Knowledge & Theory5
Total number of test questions:
Time allowed (hours):

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.

Books Allowed in the Exam
National Electrical Code (NFPA-70), 2020, NFPA
Buy at Builders Book
Washington Electricians and Electrical Installations, Title 19, Chapter 19.28 RCW, 2018
Doc Link
Washington Electrical Safety Standards, Administration, and Installation, WAC Chapter 296‑46B, 2020
Doc Link
Additional Recommended Books
Ferm’s Fast Finder Index, 2020, IAEI
Buy at Builders Book
Tom Henry‘s Key Word Index, 2020, Tom Henry
Buy at Builders Book

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.

Ugly‘s Electrical References, 2020, George Hart
Buy at Builders 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).

Available Study Materials
(04) Signs Master Electrician
Practice Exam Package

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:  1,865

Delivered via instant download link
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