Licensing Exams by Trade Name - Home Link

Colorado

Residential Wireman

Apply for the License
Colorado State Electrical Board
1560 Broadway, Suite 1350
Denver, CO  80202
Phone:  (303) 894-2300
Exam Provider
PSI Licensure: Certification
3210 E. Tropicana
Las Vegas, NV  89121
Phone:  (855) 898-0710
Exam Type
OPEN  BOOK
Exam Content
Subject Areas# of
Questions
General Electrical Knowledge18
Services, Feeders, and Branch Circuits18
Grounding and Bonding13
Overcurrent Protection5
Conductors and Cables9
Raceways and Boxes9
Special Equipment4
Electrical Devices8
Electrical Calculations6
Total number of test questions:
90
Time allowed (minutes):
240
Books Allowed in the Exam
1.
National Electrical Code (NFPA-70), 2020, NFPA
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Additional Recommended Books
1.
Ferm’s Fast Finder Index, 2017, IAEI
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2.
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.

3.
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
Colorado Residential Wireman Electrician
Practice Exam
$89.95

Sample exam questions are sourced from the National Electrical Code (NEC) and Ugly's Reference.  A subject category index mapped to question numbers is included with the answer key.

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

Total number of questions in this package:  2,093

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