Canada · Trade examWhat's on the Red Seal electrician exam?
The two exams split their 100 questions like this:
| Major work activity | Questions (Construction / Industrial) |
|---|---|
| Common occupational skills | 11 / 9 |
| Generating, distribution and service systems | 28 / 23 |
| Wiring systems | 30 / 20 |
| Motors and control systems | 21 / 21 |
| Signalling and communication systems | 10 / 10 |
| Process control systems | Industrial only: 17 |
Industrial's name for this area is "Installs and maintains rotating and non-rotating equipment and control systems".
The question types differ too. Construction Electrician is mostly procedural and application (60 to 70%), with 20 to 30% critical thinking. Industrial Electrician leans harder on critical thinking, at 40 to 50% of questions.
Formulas you're given
Both exams come with a formula sheet, posted on the exam information page so you can learn it in advance. It covers things like Ohm's law, power and power factor, three-phase power, short-circuit current and turns ratio. Practise with each formula until you know which one a question needs.
Which standard is the Construction Electrician exam based on?
The previous one. A new Red Seal Occupational Standard for Construction Electrician is out, but red-seal.ca says current exams still use the previous standard while new exams are developed. Study from the previous standard, and check the trade page again close to your exam date.
What the trade is called where you live
Construction Electrician is Red Seal in all 13 provinces and territories, under these titles:
| Province or territory | Trade title |
|---|---|
| B.C., Manitoba, New Brunswick, Newfoundland and Labrador, Nova Scotia, P.E.I., Saskatchewan, Yukon | Construction Electrician |
| Ontario | Electrician - Construction and Maintenance |
| Alberta, Quebec | Electrician |
| N.W.T., Nunavut | Electrician (Construction) |
Industrial Electrician is Red Seal in B.C., Manitoba, New Brunswick, Newfoundland and Labrador, Nova Scotia, the N.W.T., Ontario, P.E.I., Quebec and Yukon. Electrician is a compulsory trade in Ontario, so you need a certificate or a registered training agreement to work in it there.
Sources: Red Seal · Skilled Trades Ontario and 4 more. Checked October 2026.
- Red Seal: Construction Electrician ↗
- Red Seal: Construction Electrician exam information ↗
- Red Seal: Industrial Electrician ↗
- Red Seal: Industrial Electrician exam information ↗
- Red Seal: Exam Preparation Guide ↗
- Skilled Trades Ontario: Work in the compulsory trades ↗
Rules and fees can change, so check the official site before your test.
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