ICC Residential Electrical Inspector (E1) Vocabulary Game
Exam terms with clues and explanations by OpenExamPrep.
About the ICC Residential Electrical Inspector (E1) Vocabulary Games
4 free word games built on 20 ICC Residential Electrical Inspector (E1) terms across 6 topics. Every game deals terms at random and shows what each term means, so you can keep playing as long as you like.
How to Play
- 1.Read the clue and type the term (3 to 6 letters).
- 2.Green: right spot. Yellow: wrong spot. Gray: not in the term.
- 3.Solve it in 6 tries, then read the explanation.
- 1.Swap two neighboring tiles to line up 3 of the same term.
- 2.Longer lines, two lines at once and chains score more.
- 3.Play until no swap can make a line.
- 1.Flip two cards. A matching pair stays face up.
- 2.Each pair you find shows what the term means.
- 3.Clear the board in as few moves as you can.
- 1.Find each listed term in the letter grid.
- 2.Drag across its letters: across, down or diagonally.
- 3.Find all five as fast as you can.
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Topics in the ICC Residential Electrical Inspector (E1) Vocabulary Game
General requirements
Service equipment
Loads and ratings
Wiring methods
Devices and appliances
Aquatic installations
Sources for these terms (7)
- 2024 International Residential Code (IRC), Chapter 34 General Requirements · Source checked 2026-11-05
- 2024 International Residential Code (IRC), Chapter 35 Electrical Definitions · Source checked 2026-11-05
- 2024 International Residential Code (IRC), Chapter 36 Services · Source checked 2026-11-05
- 2024 International Residential Code (IRC), Chapter 37 Branch Circuit and Feeder Requirements · Source checked 2026-11-05
- 2024 International Residential Code (IRC), Chapter 39 Power and Lighting Distribution · Source checked 2026-11-05
- 2024 International Residential Code (IRC), Chapter 41 Appliance Installation · Source checked 2026-11-05
- 2024 International Residential Code (IRC), Chapter 42 Swimming Pools · Source checked 2026-11-05
About the ICC E1 Exam
The ICC Residential Electrical Inspector (E1) exam is administered by the International Code Council and certifies individuals to inspect electrical systems in one- and two-family dwellings, townhouses up to three stories, and accessory structures for compliance with the International Residential Code (IRC). The open-book exam tests knowledge of services, branch circuits, feeders, wiring methods, GFCI/AFCI protection, grounding/bonding, and swimming pool wiring as covered in IRC Part VIII (Chapters 34-43). ICC E1 certification is recognized in all 50 states and is a key credential for code officials working in residential jurisdictions.
Exam sponsor: ICC (Pearson VUE / PRONTO). The requirements and fees below concern the certification or admission exam, separate from our free practice resources.
Questions
60 questions
Time Limit
2 hours
Passing Score
75 (scaled score)
Fees, eligibility, and exam policies can change. Confirm them with the exam sponsor before applying or paying.
Frequently Asked Questions
Is the ICC E1 vocabulary game free?
Yes. The game is free to play with no sign-up. Signing in adds AI explanations for any term.
How do the ICC E1 vocabulary games work?
There are 4 games built on 20 ICC E1 terms. In Guess the Term, a clue describes one term and you have six tries to spell it, with green, yellow and gray letters showing how close you are. In Term Match, six terms appear as colored tiles; swap neighbors to line up three or more of the same term, and each match shows what the term means. In Term Pairs, twelve face-down cards hide six pairs of terms; flip two at a time to find each pair, and every pair you find shows what the term means. In Term Search, five terms hide in a grid of letters, reading across, down or diagonally; drag across a term to circle it, and each term you find shows what it means.
Where do the ICC E1 terms come from?
OpenExamPrep researched each term from the ICC (Pearson VUE / PRONTO) content outline and primary sources, listed under Sources on this page. The game is independent study material, not an official exam resource.
What score do I need to pass the ICC E1 exam?
The ICC E1 exam requires a scaled score of 75 to pass, which corresponds to approximately 75% of questions answered correctly — about 45 out of 60 questions. If you pass, you see 'PASS' on your results — no numerical score is shown for passing candidates. If you fail, you receive a diagnostic report showing your performance by content area so you know which domains to restudy. ICC uses scaled scoring set by the ICC Exam Development Committee to normalize difficulty across exam forms.
Is the ICC E1 exam open-book?
Yes, the ICC E1 exam is open-book. For the 2024 code year the approved references are the 2024 International Residential Code (IRC) plus either Ugly's Electrical References or the 2023 NFPA National Electrical Code (the 2021 form pairs the 2021 IRC with Ugly's or the 2020 NEC). Bound, copyrighted books are allowed, but study guides and practice questions are not. With 2 minutes per question on average, you must be able to find IRC Part VIII sections quickly.