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Canada's free exam prep for skilled trades apprentices. 1,110+ exam-accurate questions across 8 trades + full Mock Exam mode with scored results — based on the 2023 RSOS.

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Red Seal 421A
Heavy Equipment Technician
Updated Apr 20262023 RSOS
Diagnose and repair construction, mining, forestry and agricultural heavy equipment. Hydraulics, diesel engines, electrical, powertrain, and brakes.
Hydraulics Diesel Engine Electrical Powertrain
220 Questions
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Red Seal 310T
Truck & Transport Mechanic
Updated Apr 20262023 RSOS
Service and repair heavy trucks, trailers and transport equipment. Air brakes, diesel engines, electrical systems, and DOT compliance.
Air Brakes Diesel Engine DOT Compliance Electrical
165 Questions
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Red Seal 309A
Construction Electrician
Updated Apr 20262023 RSOS
Install, maintain and troubleshoot electrical systems in residential, commercial and industrial settings. Canadian Electrical Code, circuits, and safety.
CEC Code Motors Wiring Safety
135 Questions
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Red Seal 310S
Automotive Service Technician
Updated Apr 20262023 RSOS
Diagnose and repair passenger vehicles and light trucks. Engine, transmission, brakes, steering, suspension, and modern ADAS systems.
Engine Brakes Electrical ADAS
135 Questions
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Red Seal 308A
Refrigeration & AC Mechanic
Updated Apr 20262023 RSOS
Install and service commercial and industrial refrigeration and air conditioning systems. Refrigerants, compressors, controls and troubleshooting.
Refrigerants Compressors Controls Diagnostics
115 Questions
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Red Seal 276A
Welder
Updated Apr 20262023 RSOS
Master SMAW, GMAW, GTAW, FCAW, oxyfuel cutting, weld inspection, and metallurgy. Canada's Red Seal Welder certification covers all major welding processes.
SMAW GMAW GTAW FCAW
120 Questions
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Red Seal 447A
Plumber
Updated Apr 20262023 RSOS
Install and service DWV systems, water supply, gas piping, and plumbing fixtures. Based on the National Plumbing Code of Canada (NPC).
DWV Systems Water Supply Gas Piping NPC Code
110 Questions
Practice → 📋 Mock Exam
Red Seal 313A
Industrial Electrician
Updated Apr 20262023 RSOS
Motors, PLCs, automation, instrumentation, and power distribution for industrial facilities. Aligned with the Canadian Electrical Code (CEC).
Motors & Drives PLCs Instrumentation CEC Code
110 Questions
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📋 Simulate the Real Red Seal Exam

Choose your trade and question count. Questions are proportionally drawn from each topic — matching real RSOS weighting. Get a full scored result with topic breakdown and pass/fail at 70%.

Also available: 50-question and 100-question exams — start on any trade page
How It Works
1

Choose Your Trade

Select the Red Seal trade you're preparing for. We cover all major trades.

2

Filter by Topic

Focus on weak areas by selecting specific exam topics — hydraulics, electrical, safety and more.

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Learn as You Go

Every answer comes with a full explanation so you understand the concept, not just memorize it.

4

Track Your Score

Real-time scoring shows your progress. Study consistently until you're consistently above 80%.

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Career & Certification Guides
Career Guide · 421A
How to Become a Heavy Equipment Technician in Canada
Step-by-step apprenticeship guide, province requirements, wages, and what the Red Seal 421A certification actually gets you.
Exam Strategy · 421A
7 Proven Tips to Pass the Red Seal 421A on Your First Attempt
Real strategies from technicians who've been through it — topic weighting, hydraulics shortcuts, and exam-day time management.
Salary Guide · 421A
Heavy Equipment Technician Salary Canada 2026
Province-by-province wage data for 421A Red Seal technicians. Oil sands, mining, dealer, and municipal — what each sector pays.
Overview Guide
What Is the Red Seal Certification? Canada's Interprovincial Standard Explained
How the Red Seal program works, which trades are included, and why this certification matters for your career across Canada.
Career Guide · 310T
How to Become a Truck & Transport Mechanic in Canada
Complete 310T apprenticeship guide — air brakes licensing, DOT training, provincial requirements, and what Red Seal gets you.
Career Guide · 309A
Construction Electrician Career Guide — Red Seal 309A
How to become a licensed Construction Electrician in Canada, 309A apprenticeship stages, CEC exam requirements, and wage outlook.
Career Guide · 310S
Automotive Service Technician Career Guide — Red Seal 310S
Everything you need to know about the 310S Red Seal path — apprenticeship structure, provincial licensing, ADAS specializations, and salary.
Career Guide · 308A
Refrigeration & AC Mechanic Career Guide — Red Seal 308A
308A apprenticeship structure, refrigerant handling, data center cooling opportunities, HFC phase-down, and wage ranges across Canada.
Salary Guide · 310T
Truck & Transport Mechanic Salary in Canada 2026
What 310T Red Seal mechanics actually earn — apprentice wages, journeyperson rates, province-by-province data, and top employers.
Salary Guide · 309A
Construction Electrician Salary in Canada 2026
From 1st-year apprentice to industrial journeyperson — full 309A wage breakdown with union vs non-union comparison and province data.
Salary Guide · 310S
Automotive Service Technician Salary in Canada 2026
How much 310S Red Seal techs earn — flat-rate explained, dealership vs independent pay, EV specialist premiums, and province-by-province data.
Salary Guide · 308A
HVAC & Refrigeration Mechanic Salary in Canada 2026
308A wages from apprentice to industrial ammonia specialist — province data, employer types, and how to maximize earnings in the HVAC-R trade.
Exam Strategy · 310T
How to Pass the Red Seal 310T Exam: 8 Proven Tips
Topic weighting breakdown, J1939 diagnostic logic, DPF/SCR/DEF systems, CVSA compliance, and the study timeline that gets you through on the first attempt.
Exam Strategy · 309A
How to Pass the Red Seal 309A Electrician Exam: 8 Proven Tips
CEC Code rules most tested, load calculations, motor circuit protection, grounding vs bonding — closed-book exam strategy that works.
Exam Strategy · 310S
How to Pass the Red Seal 310S Automotive Exam: 8 Proven Tips
OBD-II fuel trim diagnosis, GDI carbon buildup, ABS/ESC/EPB systems, VVT logic — closed-book diagnostic strategy for the 310S exam.
Exam Strategy · 308A
How to Pass the Red Seal 308A HVAC Exam: 8 Proven Tips
Superheat and subcooling interpretation, refrigerant regulations, compressor failure modes — the refrigeration theory the exam actually tests.
Trade Comparison
Which Red Seal Trade Should I Choose? Complete 2026 Comparison
421A vs 310T vs 309A vs 310S vs 308A — wages, demand, work lifestyle, and which trade fits your goals. The guide for apprentices still deciding.
Exam Format
Red Seal Exam Format 2026: Questions, Time Limits & What to Expect
Exactly how many questions, how long you have, how computer-based testing works, and what the 70% pass mark means for your study plan.
Job Market
10 Skilled Trades in Demand in Canada 2026 — With Salary Data
Canada needs 300,000+ more tradespeople by 2032. See which trades pay the most, where the jobs are, and which Red Seal certifications open the most doors.
Apprenticeship
How Long Does a Red Seal Apprenticeship Take? Canada 2026 Guide
3 to 5 years depending on the trade. Full timeline breakdown for 421A, 310T, 309A, 310S, and 308A — plus wage progression tables and how to speed it up.
Career Guide · 276A
How to Become a Red Seal Welder (276A) in Canada — 2026 Guide
Apprenticeship path, hours required, province-by-province wages, SMAW/GMAW/GTAW certification routes, and what the 276A exam covers.
Career Guide · 447A
How to Become a Red Seal Plumber (447A) in Canada — 2026 Guide
Plumber apprenticeship timeline, journeyperson wages by province, NPC code knowledge requirements, and how the 447A Red Seal exam is structured.
Career Guide · 313A
How to Become a Red Seal Industrial Electrician (313A) — 2026 Guide
Industrial vs. construction electrician differences, 313A apprenticeship path, PLC/instrumentation skills, wage tables, and exam overview.
Salary Guide · 276A
Welder Salary Canada 2026 — Red Seal 276A Pay by Province
Red Seal Welder wages from $28–$45/hr depending on province and industry. Full breakdown for Alberta, BC, Ontario, Saskatchewan + union rates.
Salary Guide · 447A
Plumber Salary Canada 2026 — Red Seal 447A Pay by Province
Red Seal Plumber wages from $35–$52/hr. Compare wages across provinces, union vs. non-union rates, and highest-paying sectors for 447A journeypersons.
Salary Guide · 313A
Industrial Electrician Salary Canada 2026 — Red Seal 313A Pay
Industrial Electrician wages from $38–$58/hr — premium over 309A. Oil & gas, mining, and manufacturing sector breakdown + union rates by province.
Exam Strategy · 276A
How to Pass the Red Seal 276A Welder Exam — 8 Proven Tips
Electrode classifications, weld defect root causes, SMAW/GMAW/GTAW process differences, and the metallurgy topics that show up on every 276A exam.
Exam Strategy · 447A
How to Pass the Red Seal 447A Plumber Exam — 8 Proven Tips
NPC trap requirements, backflow prevention device selection, venting methods, gas piping (CSA B149.1), and DWV slope rules every 447A candidate must know.
Exam Strategy · 313A
How to Pass the Red Seal 313A Industrial Electrician Exam — 8 Tips
PLC ladder logic, 4-20mA instrumentation loops, motor starting methods (star-delta, VFD), PID control concepts, and CEC Section 18 hazardous locations.
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