
This study guide is organized to match the way topics appear on the Wyoming (239) Low-Voltage Limited Sign Technician exam. Here is what is included in your download:
Use these questions alongside your National Electrical Code (NEC) book. Read a section of the book, then work through the related practice questions to check your understanding.
Each question includes a reference to the NEC article number where the subject is discussed. This helps you quickly review why the correct answer is right and reinforces the process of looking up information efficiently — a key skill for an open-book exam.
Bookmarks have been added throughout the study guide to help you:
Use the additional questions drawn from Ugly’s Electrical References to strengthen your coverage of general theory, Ohm’s Law and topics that commonly appear on the electrical exam.
Sample exam questions are sourced from the National Electrical Code (NEC) and Ugly’s Electrical References.
Get instant access to the (239) Low-Voltage Limited Sign Technician Exam Study Guide and start practicing with exam-style questions tied directly to the 2023 NEC and Ugly’s Electrical References. Use the included code references to build speed, accuracy, and confidence for an open-book ICC exam.All study materials are delivered electronically for instant access after purchase and are provided as ZIP archives containing standard US letter-size PDF files. For reliable access, files should be downloaded and extracted on a computer, tablet or printed for offline study.

Please consult the ICC exam bulletin for more detailed information about subject categories, time allowed and required books. The button below will allow you to view or download the bulletin for Wyoming.
NOTE: Only ONE of the NEC index books (3a or 3b) need to be purchased.
NOTICE: The above reference books will not be supplied at the exam location. You must bring your own copies that conform to the requirements shown on the Administrative Rules web page section titled "During the exam".
QUESTION: "What is the difference between the National Electrical Code (NEC) and the Handbook version?". As far as the actual NEC code quoted in the text... it's the same.
The NEC Handbook has additional diagrams, graphics and explanations inserted into the text (adding more pages and raising the price). It was designed for engineers and inspectors. The typical exam candidate should not use it as a preferred reference.