Based on the Red Seal Industrial Electrician standard, PLCs, drives, power distribution & process automation
Practice on the go and jump straight back to where you left off.
About the certification
In Ontario and across Canada, Industrial Electrician is designated trade code 442A (NOC 72201). The written Certificate of Qualification examination is administered through Skilled Trades Ontario and provincial apprenticeship bodies. Industrial Electrician is a Red Seal designated trade, so passing the qualifying examination awards both provincial certification and the Interprovincial Red Seal endorsement.
The Red Seal Industrial Electrician exam contains 100 multiple-choice questions with a 70% pass mark (70/100), and candidates are allotted up to 4 hours (240 minutes). Competencies are grounded in the Red Seal Occupational Standard (RSOS), emphasizing industrial motor controls, programmable logic controllers (PLCs), variable frequency drives (VFDs), 4–20 mA instrumentation loops, switchgear maintenance, and zero-energy lockout procedures (O. Reg. 851).
ExamHub's free 442A practice quiz includes 200 original questions across all 6 official exam blocks, complete with step-by-step calculations and trade citations.
What's covered
Categories follow the Red Seal Major Work Activity breakdown, balancing power distribution, motor drives, automation logic, and process control loops.
Try a few
Five sample questions from the question bank with detailed calculation steps shown.
Why: A three-point test (live-dead-live) with an approved multimeter verifies that the instrument operates before and after testing all phase-to-phase and phase-to-ground conductors.
Why: Ratio is 400 / 5 = 80. Primary current = Secondary reading × Ratio = 3.5 A × 80 = 280 A.
Why: Voltage drop VD = I × R_total = 16 A × 0.25 ohms = 4.0 V. Percentage drop = (4.0 V / 120 V) × 100 = 3.33%.
Why: Synchronous speed N_s = (120 × f) / P = (120 × 45) / 4 = 5400 / 4 = 1350 RPM.
Why: 75 PSI is 50% of the 150 PSI span. The 4–20 mA span is 16 mA. Output = 4 mA + (0.50 × 16 mA) = 4 + 8 = 12.0 mA.
FAQ
The interprovincial Red Seal Industrial Electrician (442A) exam consists of 100 multiple-choice questions. ExamHub's practice question bank includes 200 questions, and Test Mode delivers a full 100-question timed simulation.
The passing grade is 70% (70 correct answers out of 100 questions). Candidates are allotted 4 hours (240 minutes) to complete the test.
442A Industrial Electrician is specialized for manufacturing plants, automated factories, PLCs, variable frequency drives, process instrumentation, and hydraulic/pneumatic interfaces. 309A focuses on construction sites, residential/commercial branch wiring, service entrance installations, and building electrical systems.
The exam covers 6 Major Work Activities: Common Occupational Skills (9 Qs), Generating, Distribution & Service Systems (23 Qs), Wiring Systems (20 Qs), Rotating & Non-Rotating Equipment & Controls (21 Qs), Signalling & Communication Systems (10 Qs), and Process Control Systems (17 Qs).
No. These are original practice questions created by ExamHub based on the Red Seal Occupational Standard (RSOS), Skilled Trades Ontario curriculum guidelines, Ontario Regulation 851, and industrial automation principles. They are designed for study practice and are not copies of actual exam questions.