The exam at a glance
- 125multiple-choice questions
- 70%pass mark (88 of 125 correct)
- 4 hourswriting time
- ~1.9 minper question on average
Every question has four options and one correct answer. There are no trick questions, and every question is worth one mark. The exam is the same interprovincial Red Seal exam everywhere in Canada.
Question types: knowledge and recall 15–25%, procedural and application 60–70%, critical thinking 10–20%.
What's on the exam
The questions follow the Powerline Technician Red Seal Occupational Standard, grouped into major work activities. The biggest blocks are Performs common occupational skills (32), Performs operation, maintenance and repair (32), Installs auxiliary equipment (26).
| Block | Major work activity | Questions | Share |
|---|---|---|---|
| A | Performs common occupational skills | 32 | 26% |
| B | Installs structures | 16 | 13% |
| C | Installs conductor systems | 19 | 15% |
| D | Installs auxiliary equipment | 26 | 21% |
| E | Performs operation, maintenance and repair | 32 | 26% |
| Total | 125 | 100% |
How to study
- Common occupational skills (A, 32) and operation, maintenance and repair (E, 32) are the two biggest blocks. Know protective grounding order, equipotential zones, approach distances, rubber glove and hot stick methods, and switching with repeat-back.
- Auxiliary equipment (D, 26): transformer connections (wye, delta, open-delta), full-load current (kVA × 1000 ÷ V, or ÷ √3 × V for three phase), regulators, capacitors, fuses, reclosers, sectionalizers and arresters.
- Conductor systems (C, 19): sag and tension versus temperature, stringing blocks and grounding during pulls, splices, ties and underground cable terminations.
- Structures (B, 16): pole class and setting depth, guying and anchors, framing and steel lattice towers.
- Do the free self-assessment on the official exam page and spend your time on the tasks you rated lowest, weighted by how many questions they carry.
- Practise every day in short sets. When you get one wrong, work out why each wrong option is wrong, not just which one is right.
Working as a Powerline Technician in Alberta and BC
Line crews in Alberta and BC build, maintain and repair distribution and transmission systems across cities, farmland, mountains and the northern resource regions.
- Alberta. Distribution and transmission work around Calgary, Edmonton and Red Deer, rural distribution across farm and ranch country, and high-voltage supply to oil sands operations near Fort McMurray and to gas plants across the province.
- British Columbia. Urban distribution in Metro Vancouver and the Okanagan around Kelowna, long transmission corridors through mountain terrain, and new lines and substations tied to industrial growth in the north, including the LNG corridor from Prince George to Kitimat.
- Who hires. Electric utilities, rural electrification associations (in Alberta), municipal utilities, transmission and distribution line contractors, and industrial sites that run their own high-voltage systems.
- The work pattern. Expect outdoor work in all weather, on-call storm and wildfire restoration, and travel or camp work on remote transmission projects.
In Alberta the apprenticeship is run through Alberta Apprenticeship and Industry Training (tradesecrets.alberta.ca). In BC it is run by SkilledTradesBC.
The Red Seal exam is the same everywhere: a Red Seal endorsement is recognized in every province and territory that takes part in the Red Seal Program, so this practice works wherever you write. Exam study guide
Try 3 sample questions
These are original practice questions from our Powerline Technician question bank, not real exam questions.
Question 1 · Safety & grounding
What is the main purpose of temporary protective grounds on a de-energized line?
- A. Stop the line from sagging in hot weather while crews work on it
- B. Show the public the line is being worked on
- C. Keep workers in an equipotential zone and clear any fault fast
- D. Reduce radio noise
Show the answer
C. Keep workers in an equipotential zone and clear any fault fast
Grounds limit touch voltage on the worker and let protection trip if the line is re-energized.
Question 2 · Protection equipment
What is a recloser?
- A. A switch that only opens manually
- B. A device that trips on fault and recloses automatically
- C. A fuse that never resets
- D. A switch that only opens manually and must be reset by the crew on site
Show the answer
B. A device that trips on fault and recloses automatically
Most faults are temporary; reclosing restores service.
Question 3 · Transformers & voltage control
A farm service runs on an open-delta bank of two 50 kVA units. What is its three-phase capacity?
- A. 100 kVA
- B. 150 kVA
- C. 87 kVA
- D. 29 kVA
Show the answer
C. 87 kVA
Open-delta capacity is √3 × one unit, or 86.6% of the two units combined: 1.732 × 50 ≈ 87 kVA.
Every question in every trade is free for everyone until Dec 1. No sign-up needed.
Try 10 questions free, no account needed. Every question has a plain-language explanation.
Start practisingSources
- Red Seal Program: Powerline Technician exam information (number of questions, breakdown, question types)
- Red Seal Exam Preparation Guide (70% pass mark, four-hour writing time, format)
- SkilledTradesBC: What to expect on exam day (four-hour time limit, materials provided)
Checked October 2026. Exam details can change, so confirm with the official page and your provincial or territorial apprenticeship authority before you write. RedSkillTrade is an independent study tool and isn't affiliated with the Red Seal Program.