Free Practice Test
Chicago Supervising Electrician (General)
Try 10 questions weighted like the CTS outline: wiring methods, wiring and protection, electrical principles, equipment, special occupancies and conditions, communications, OSHA safety and the city’s Titles 2, 4 and 13. Every question cites the 2017 NEC, Chicago’s Title 14E amendments, the Municipal Code or OSHA section it comes from, and where Chicago changes a rule the question follows Chicago. You get a score for each area and an explanation for every answer.
What you’ll get
Your Score
See your percentage as soon as you enter your name and email.
Topic Breakdown
Find out which topics you're strong in and where you need work.
Codebook Explanations
Unlock detailed explanations with exact code references.
Free With Your Email
Enter your name and email after the test to see your score and the questions you missed.
Every licensed Chicago electrical contractor must employ a supervising electrician. The General exam is 150 questions in 4 hours on paper, open book on the 2018 Chicago Electrical Code, and you need 70.
Related reading
Chicago Supervising Electrician Exam Day: What to Expect
What happens on the day of the Chicago Supervising Electrician exam: the paper format, what to bring, the clean-book and tab rules, the city-law handout CTS gives you, pacing 150 questions in 4 hours, and what happens after.
What's on the Chicago Supervising Electrician Exam?
The Chicago Supervising Electrician (General) exam has 150 questions: 25 on electrical principles and OSHA safety and 125 on the Chicago Electrical Code and city law. The outline, the Chicago amendments that change the 2017 NEC, and how to study.
Chicago Supervising Electrician License: Requirements and How to Apply
Who can take Chicago's Supervising Electrician (General) exam, how to apply through Continental Testing Services, the 2026 fees, exam dates, the six-month retake wait, and how the license is renewed.