Construction Trade Exam Research Area

(02) Residential Master Electrician

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Washington State
Department of Labor and Industries ™

7273 Linderson Way SW
Tumwater, WA  98501
Phone: (360) 902-5269
WA Trades & Licensing Link

Exam Administrator

PSI Licensure: Certification ™
3210 E. Tropicana
Las Vegas, NV  89121
Phone:  (800) 733-9267
Candidate Bulletin Link

Exam Type


Exam Content

Subject Areas # of
90 Introduction 1
100-110 General Requirements 3
Wiring and Protection 3
230 Services 4
240 Overcurrent Protection 6
250 Grounding and Bonding 6
300‑398 Wiring Methods 9
Electrical Equipment 3
430-450 Motors, HVAC, Generators and Transformers 3
500-516 Hazardous Locations 1
517-590 Special Occupancies 2
600-695 Special Equipment 4
700-702 Emergency and Standby Systems 2
705-780 Special Conditions 2
800-830 Communication Systems 1
Washington Laws and Rules (RCW and WAC) 20
Major Load Calculations 10
General Trade Knowledge and Theory 10

Total Number of Test Questions: 90
Time Allowed (Hours): 6.0

NOTE:  The study material we are offering for this exam will exclude sample questions for “Major Load Calculations” and/or “General Trade Knowledge” because they can not be created from code books or statutes.  Those exam questions are proprietary, copyrighted inventions of PSI.

Books Allowed in the Exam

1. National Electrical Code (NFPA-70), 2017, NFPA Buy at Amazon
2. Washington Electricians and Electrical Installations, Title 19, Chapter 19.28 RCW Web Page Link
3. Washington Electrical Safety Standards, Administration, and Installation, WAC Chapter 296-46B PDF File Link

Additional Recommended Books

1. Ferm's Fast Finder Index, 2017, IAEI Buy at Amazon
2. Tom Henry's Key Word Index, 2017, Tom Henry Buy at Amazon
We highly recommend that you purchase one of the reference books above and learn how to use 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 book during an exam (if allowed).

Study Materials

Washington Electrical
Practice Exam Package

$75.95 - $249.95

The price of the study materials varies and is based on your exam sub-category chosen in our order form on the next page.

Questions are sourced from the NEC and Washington statutes shown above.  The files you will be receiving contain between 600 and 2,000 sample exam questions depending on the NEC sections required for your exam by PSI.

An answer key with detailed code sub-section references is included.

Additional bonus questions (260) are included from Ugly's Electrical Reference and Americal Electricians' Handbook.

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