Industrial Electrician · Red Seal 442A
Five 442A Industrial Electrician practice exam questions, answers included.
Five questions from five different work activities — procedural and critical-thinking, the way the exam is built. Pick an answer, then open the explanation. Every question in the bank explains all four options, not just the right one.
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At a mine, belt conveyor 1 loads conveyor 2, conveyor 2 loads conveyor 3, and conveyor 3 feeds a crusher. In what order must the motor controls be interlocked to start?
- Crusher and conveyor 1 first, then 2 and 3.
- Conveyor 1, then 2, then 3, then the crusher.
- All four together from one start button.
- Crusher, then conveyor 3, then 2, then 1.
Show the answer
D. Correct. Each machine starts only after the one it discharges onto is running, so material never lands on a stopped belt or in a stopped crusher. Auxiliary contacts or speed signals carry the permissive back up the line, and stopping runs the other way: conveyor 1 first so the belts clear.
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A steam valve that opens as its control signal rises heats a process water tank at a food plant. When the water temperature rises above setpoint, the valve must close. Which controller action is configured?
- Reverse acting: the output falls as the temperature rises.
- Direct acting: the output falls as the temperature rises.
- Direct acting: the output rises as the temperature rises.
- Reverse acting: the output rises as the temperature rises.
Show the answer
A. Correct. Rising temperature must cut the steam, and with a valve that opens on a rising signal the output must fall: that is reverse action. Set wrong at commissioning, a small rise above setpoint opens the valve further and the temperature runs away, so the action is checked on the first test run.
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A 600 V feeder to a refinery's compressor building carries 500 A at 0.70 power factor lagging. Capacitors are added to raise the power factor to 0.95 with the real power unchanged. What will the feeder current be?
- 350 A
- 368 A
- 475 A
- 679 A
Show the answer
B. Correct. With voltage and real power unchanged, P = E × I × PF × √3 means I × PF stays constant: 500 × 0.70 = I × 0.95, so I = 368 A. The feeder sheds about a quarter of its current, which frees capacity and cuts I²R losses.
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A forced-air unit heater rated 6 kW at 240 V, single phase, is connected line-to-line on a 120/208 V panel in a warehouse to replace a 5.0 kW heat loss. Will it meet the load?
- Yes; it gives its rated 6 kW on any supply voltage.
- Yes; it gives about 5.2 kW, enough for the 5.0 kW loss.
- No; it gives about 4.5 kW, short of the 5.0 kW loss.
- No; it draws more current at 208 V and trips its breaker.
Show the answer
C. Correct. R = 240² ÷ 6 000 = 9.6 Ω; at 208 V, P = 208² ÷ 9.6 = 4.51 kW, about 75 % of rating. The area would be about 0.5 kW short on a design day; a heater rated for 208 V is needed.
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An Ethernet cable to a remote I/O panel in a cement plant must cross a cable tray full of VFD motor cables. How is it routed?
- Across the tray at right angles, kept clear of it.
- Inside the tray, tied to the motor cables.
- Inside the tray, as a shielded Category 6A cable run.
- Alongside the tray, fastened to its side rail.
Show the answer
A. Correct. Crossing at 90° keeps the parallel length, and so the coupled noise from the drive's fast voltage edges, to a minimum. Away from the crossing the data cable is kept separated from the motor cables, in its own tray or raceway.
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The 442A Industrial Electrician exam at a glance
What you're walking into.
Question mix — weighted to the blueprint
The Industrial Electrician exam is a troubleshooting exam: 40 to 50 percent of the paper is critical thinking, as large a share as any trade we cover, 35 to 45 percent asks you to carry out a procedure, and only 10 to 20 percent asks you to recall a fact. The situations are plant situations — a starter that will not hold in, a drive that trips, a transmitter reading that makes no sense, a transformer secondary that reads wrong, a feeder current after power factor correction — and the wrong answers are the causes that would explain some of the symptoms but not all of them. Generating, distribution and service systems is the largest block at 23 questions; motors, drives and their controls carry 21 and process control 17, so 38 of the 100 questions are on motor control and automation. The largest single task, input/output devices, carries 8.
The pass mark is 70 percent, which is 70 correct answers out of 100, and four hours works out to about 2 minutes 24 seconds a question. A formula sheet and an acronym list are provided at the sitting, and where the exam calls for the Canadian Electrical Code, the writing centre supplies it. The exam is built on the 2021 Red Seal Occupational Standard for Industrial Electrician. Ontario certifies the trade as Industrial Electrician (442A), with 7,950 hours on the job and 1,050 hours of technical training across four levels. It is a Red Seal trade in ten provinces and territories, but not in Alberta, Saskatchewan or Nunavut.
The full 442A practice exam
Know your real Industrial Electrician exam score before exam day.
Free, Red Seal–style practice for the Industrial Electrician certification — 442A in Ontario. Every test is weighted to the official exam blueprint — close to half critical thinking, the rest procedure and recall, the way the real exam is built — so the score you get here reflects the score you'd get there.
What the 442A exam covers
Six major work activities.
The occupational standard groups the trade into 6 major work activities, 31 tasks and 112 sub-tasks. The question counts below are the official blueprint weightings — our 550-question bank is built to that same map, with every tested sub-task covered. Power systems lead with 23 of the 100 questions, then motors, drives and their controls (21), wiring systems (20) and process control (17). Signalling and communication (10) and common occupational skills (9) are the smallest. Communication and mentoring is the one task with no exam questions.
- A
Performs common occupational skills · 9 questions
Safety-related functions — a safe work environment, PPE, lockout and tagout, environmental conditions (2 questions); tools and equipment, including access equipment and rigging, hoisting and lifting (2); organizing work — plans and drawings, hazardous installations, materials, project planning and documentation (2); fabricating and installing support components, including seismic restraints (1); and commissioning and decommissioning electrical systems, with shutdown and start-up procedures (2). Free block A questions: safety, work planning and commissioning →
- B
Installs and maintains generating, distribution and service systems · 23 questions
Supply services and metering, single and three-phase (3 questions); overcurrent, ground fault, arc fault, surge and under- and over-voltage protection (4); low-voltage distribution equipment (3); power conditioning — power factor correction, harmonics and UPS systems (2); bonding, grounding and ground-fault protection and detection (3); AC generators and DC generating and conversion systems (2); renewable energy and energy storage (1); high-voltage systems (2); and transformers from extra-low-voltage to high-voltage (3). The largest block on the paper. Free block B questions: power distribution, protection and transformers →
- C
Installs and maintains wiring systems · 20 questions
Raceways, cables, conductors and enclosures (5 questions); luminaires and wiring devices (5); HVAC electrical components and controls (3); electric heating systems and controls, including heat tracing (3); exit and emergency lighting (2); and cathodic protection systems (2). Free block C questions: raceways, cables, lighting and heating →
- D
Installs and maintains rotating and non-rotating equipment and control systems · 21 questions
Motor starters and control devices (7 questions); AC and DC drives (5); other fixed equipment — welding equipment, electromagnets, electrostatic precipitators and their controls (3); and single-phase, three-phase and DC motors (6). Free block D questions: motor starters, drives and motors →
- E
Installs and maintains signalling and communication systems · 10 questions
Fire alarm and security and surveillance systems (4 questions); communication systems, from structured cabling and fibre to industrial networks such as Ethernet and Modbus (3); and building automation systems (3). Free block E questions: fire alarm, communication and building automation →
- F
Installs and maintains process control systems · 17 questions
Discrete and analog input/output (I/O) devices (8 questions), the largest single task on the exam; installing, programming and maintaining automated control systems such as PLCs and DCSs, and optimizing their performance (6); and pneumatic and hydraulic control systems (3). This is the block the 309A Construction Electrician exam does not have. Free block F questions: PLCs, instrumentation and process control →
Where our numbers come from
Every question, anchored to the standard.
Electrical practice banks quietly go wrong in three ways: a code rule remembered from an older edition or a U.S. code presented as Canadian, a drive parameter or a relay setting from one manufacturer presented as the only right answer, and formulas tested as memory when the exam hands you a formula sheet. Every question in our 442A bank is anchored to a sub-task of the occupational standard and verified against it, with all four options explained. Every question that depends on a code rule was checked against the 2024 Canadian Electrical Code, and where a table value would be needed the question gives it, so it tests the method rather than your memory of the table. Where a value depends on the manufacturer, the plant or the drawing — an overload setting, a drive parameter, a transmitter range — the question states it. The formula sheet and acronym list are provided at the exam sitting — √3 = 1.73, Ohm's law and the power formulas, three-phase line and phase relationships, power factor, turns ratio, short-circuit current from percent impedance, frequency from poles and speed — so calculation questions that use those formulas are worked from the sheet, as the sheet writes them, and we never test recall of the formulas themselves. The question counts above are the Red Seal Program's own exam breakdown for Industrial Electrician, and every question is mapped to a sub-task of the Red Seal Occupational Standard. The current exam and this bank follow the 2021 standard. For what each block covers and where to spend your study time, read the 442A Industrial Electrician exam guide. Read how our questions are made.
Tools for this exam: the free voltage drop calculator, Ohm's law and power calculator and conduit fill calculator, no account needed.
Last reviewed against the Red Seal Program's published exam information.
Why practice scores mislead
You can ace recall and still fail the 442A exam.
Only 10 to 20 percent of the Industrial Electrician exam asks you to state a fact — a fuse class, a relay function, a detector type. That is exactly why recall drills leave electricians over-confident. Between 40 and 50 percent of the paper is critical thinking: a set of meter readings, a symptom or a nameplate, and you have to name the cause or the number. Knowing what a power factor is does not tell you what the feeder current will be after the capacitors go in. Knowing what reverse action is does not tell you which way a heating loop must be configured until you think through the valve. Knowing how a conveyor starter works does not tell you the order a line of conveyors must be interlocked to start. Then 35 to 45 percent is procedural: the order of steps on a lockout handover, a breaker test, an instrument isolation, an autotune. The formula sheet gives you Ohm's law, the power formulas and the three-phase relationships but nothing for voltage drop, impedance, slip or a 4–20 mA scaling, so that method is yours to bring. That gap is why people walk in confident and walk out surprised. TicketPrep weights every test to the published blueprint, so a weak block here is a weak block there.
How TicketPrep prepares you
Built like a study tool, not a quiz app.
Weighted to the blueprint
Every test matches the published 442A weightings — recall, procedure and critical thinking in the same proportions the real exam is built from.
Every answer explained
Learn why the right answer is right — and why each of the other three is wrong. That's where the learning happens.
Timed mock exams
Full-length tests that match the real 100-question count and 4-hour limit, so exam day feels familiar.
Know your weak areas
Your score broken out by work activity, so you always know which block to drill next.
442A exam questions
Before you start.
How many questions are on the 442A Industrial Electrician Red Seal exam?
How is the 442A Industrial Electrician exam different from the 309A exam?
Is the Industrial Electrician practice exam free?
Is there a formula sheet on the Industrial Electrician Red Seal exam?
Do you get a code book on the Industrial Electrician Red Seal exam?
Which provinces have the Industrial Electrician Red Seal?
What does the Industrial Electrician Red Seal exam cover?
Are these real Industrial Electrician Red Seal exam questions?
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