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Compare the CWI exam parts
How Parts A, B and C of the CWI exam compare: questions, time, format and what each one tests.
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CWI Part A vs CWI Part B
Part A tests what you know without a book: terms, processes, symbols, NDE, metallurgy and calculations, in 165 questions over 135 minutes at a Prometric center.
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CWI Part B vs CWI Part C (D1.1)
Both reward using a reference well.
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CWI Part A vs CWI Part C (D1.1)
Part A is closed book and broad: it covers the fundamentals of welding and inspection in about 50 seconds a question.
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