Welding and NDE symbols for the CWI exam
Reading weld and NDE symbols accounts for at least 10% of Part A.
The partsEvery welding symbol starts with a reference line and an arrow that points at the joint.Arrow sideThe arrow touches one side of the joint. That side is the arrow side.Below the lineA fillet triangle below the line means weld the arrow side. The number on its left is the leg size.
Lessons in this chapter
5 lessons, about 5 minutes each · Part A 10%+ of the exam
- Welding symbols: arrow side and other side Lesson 1 · free
- Fillet and groove weld symbols
- Size, length and pitch
- Tails, flags and contours
- Reading NDE symbols
Built on AWS CWI Examination Information Guides: Part A Fundamentals, Part B Practical, Part C Codebook Applications (test specifications per AWS B5.1) · Parts A and B Rev. 03.01.2024; Part C Rev. 02.11.2025 · Part A: Symbols – Welding and NDE
The full class, $149 at launch.
Paid once, when it opens. Lesson 1 is free now.
- Worked calculations
- Symbols & visual inspection
- Code navigation drills
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