Exam E1
Residential Electrical Inspector
Inspecting electrical services, conductors, equipment, components, fixtures, appliances and devices for one- and two-family dwellings limited to 120/240 volts, single phase, up to 400 amperes.
- Questions
- 60
- Time limit
- 120 min
- Per question
- 120 sec
- Book
- Open
Where the marks sit
Branch Circuit and Feeder Requirements carries 28 percent on its own. Study time should follow this, not the order of the chapters.
Transcribed from ICC's published E1 content outline. Areas sum to 100 percent.
Full topic breakdown
Where candidates lose the clock on E1
Each of these is a term the exam words one way and the code files another way.
| You are looking for | The code calls it |
|---|---|
| GFCI outlets in a bathroom | Branch circuits, GFCI |
| ground rod at the panel | Service grounding and bonding |
Common questions
How many questions are on the ICC E1 exam?
The E1 Residential Electrical Inspector exam has 60 multiple-choice questions with a 120-minute limit, which works out to about 120 seconds per question.
Is the ICC E1 exam open book?
Yes. The E1 is an open-book exam. The constraint is time rather than recall: you have roughly 120 seconds per question including the lookup.
How long is the ICC E1 exam?
120 minutes, or 2 hours, for 60 questions.
What is on the ICC E1 exam?
6 topic areas. The heaviest is Branch Circuit and Feeder Requirements at 28 percent, followed by Wiring Methods and Power and Lighting Distribution at 21 percent. The full weighting is published by ICC and reproduced on this page.
Which code book do I need for the E1 exam?
The International Residential Code is the primary reference. Confirm the edition your jurisdiction has adopted, because adopted editions vary by state and the exam is written to a specific one.
The kit that goes on the table
2024 IRCThe book itself
2021 IRCIf you register on 2021
2024 Fast-TabsPlace them yourself
Construction Master ProFeet-inch math, no errorsMatch the book and tabs to the edition you register for.Confirm which, first.