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Master Electrician

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State of Texas
Department of Licensing and Regulation (TDLR)

920 Colorado St
Austin, TX  78701
Phone: (512) 463-6599
Exam Provider
PSI Services LLC
3210 E. Tropicana
Las Vegas, NV  89121
Phone:  (833) 333-4741
Exam Type
Exam Content
NEC Knowledge Portion
Subject Areas# of
Definitions, Theory & Plans7
Electrical Services, Service Equipment & Separately Derived Systems11
Electrical Feeders7
Branch Circuit Conductors11
Electrical Wiring Methods & Electrical Materials7
Electrical Equipment & Devices7
Motors & Generators7
Electrical Control Devices & Disconnecting Means3
Special Occupancies, Equipment & Conditions7
Renewable Energy Technologies3
Total number of test questions:
Time allowed (minutes):
Calculations Portion
Subject Areas# of
Calculations & Theory2
Electrical Services, Service Equipment & Separately Derived Systems8
Electrical Feeders3
Branch Circuit Calculations & Conductors4
Electrical Wiring Methods & Electrical Materials2
Electrical Equipment & Devices2
Motors & Generators6
Electrical Control Devices & Disconnecting Means1
Special Occupancies, Equipment & Conditions1
Renewable Energy Technologies1
Total number of test questions:
Time allowed (minutes):
Books Allowed in the Exam
National Electrical Code (NFPA-70), 2023, NFPA
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Additional Recommended Books

The books listed below are NOT allowed at the exam location

Ferm's Fast Finder Index, 2023, IAEI
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Tom Henry's Key Word Index, 2023, Tom Henry
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We 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 or 2023, Charles Miller 
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Practical Calculations for Electricians, 2023, Ray Holder
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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.

A "calculations" book where you can drill yourself repeatedly is always a good way to remember the most basic math procedures.  Generally, you won't have time during an exam to search for these procedures in a book.

Available Study Materials
Master Electrician
Practice Exam

Sample exam questions are sourced from the National Electrical Code (NEC) and Ugly's Electrical References (2020 or 2023 versions).  Sample questions are fully indexed and cross referenced to help you navigate back to the same location where you left off between study sessions.

Bookmarks have been added to help the user randomly jump to specific questions related to NEC Articles in the code.

The total approx. number of sample questions in this package:  2,560

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