CWI Exam Domains 2026: Complete Guide to All 7 Content Areas
Understanding the CWI exam domains is the foundation of effective exam preparation. The Certified Welding Inspector exam tests knowledge across seven...
CWI Domain Deep Dives
Domain Deep Dives for the Certified Welding Inspector (CWI) exam - 4 in-depth guides to help you prepare with confidence. Browse all study resources or jump straight into a guide below.
CWI Domain 1: Part A Fundamentals (150 questions, closed-book) - Complete Study Guide 2027
The CWI Domain 1: Part A Fundamentals exam represents the theoretical foundation of welding inspection knowledge.
CWI Domain 2: Part B Practical (46 questions, hands-on) - Complete Study Guide 2027
The Part B Practical exam represents the most challenging and decisive component of the CWI certification process.
CWI Domain 3: Part C Code Book (50-65 questions, open-book) - Complete Study Guide 2027
The CWI Domain 3 Part C Code Book examination represents the culmination of your Certified Welding Inspector journey.
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