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Start with Part B practical preparation, then prepare for Part A and your selected Part C code and edition. Confirm your schedule and codebook in your AWS confirmation letter. VoltExam mixed practice is not an official CWI simulation or a prediction of passing; digital drills do not replace practical preparation with physical specimens and tools. AWS CWI Examination User Guide (reviewed 2026-09-05).

AWS Certified Welding Inspector Practice Test

493 practice questions across 15 topics, each with a written explanation of why the correct answer is correct. Start below — the first questions are free and no account is required.

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Topics on the AWS Certified Welding Inspector exam

Sample AWS Certified Welding Inspector questions

Welding Processes

Which welding process uses a non-consumable tungsten electrode?

  1. A. GMAW
  2. B. FCAW
  3. C. GTAW
  4. D. SMAW

Answer: C. Gas Tungsten Arc Welding (GTAW) uses a non-consumable tungsten electrode to produce the arc. Filler metal is added separately if needed.

Welding Metallurgy

In the Iron-Carbon phase diagram, the temperature at which liquid steel begins to solidify upon cooling is called the:

  1. A. Solidus line
  2. B. Liquidus line
  3. C. Eutectoid point
  4. D. Transformation line

Answer: B. The Liquidus line represents the temperature above which the alloy is completely liquid. Below this line, solidification begins.

Weld Symbols (AWS A2.4)

In a standard welding symbol, the horizontal line connecting the arrow and the tail is called the:

  1. A. Base line
  2. B. Reference line
  3. C. Connector line
  4. D. Instruction line

Answer: B. The reference line is the horizontal line where the weld symbol and dimensions are placed. It is the foundation of the welding symbol.

Work through every topic on the AWS Certified Welding Inspector question directory, or start the timed practice test above.

AWS Certified Welding Inspector exam — frequently asked questions

How many questions are on the AWS Certified Welding Inspector exam?

The AWS Certified Welding Inspector exam typically has 150 (Part A) + open book + practical. The exact count varies by state and exam version. VoltExam gives you 493 practice questions covering every topic tested.

What score do you need to pass the AWS Certified Welding Inspector exam?

The passing score for the AWS Certified Welding Inspector exam is typically 72% per part. Scoring significantly above the minimum on practice tests before exam day is strongly recommended to account for real-exam pressure.

What is the pass rate for the AWS Certified Welding Inspector exam?

The estimated first-attempt pass rate for the AWS Certified Welding Inspector exam is ~50%. Candidates who complete structured practice sessions with full answer explanations pass at significantly higher rates.

How long should I study for the AWS Certified Welding Inspector exam?

Most candidates study 3–6 months for the AWS Certified Welding Inspector exam. Study time varies based on prior experience. Focusing on practice questions with explanations is the most time-efficient preparation method.

What topics are on the AWS Certified Welding Inspector exam?

The AWS Certified Welding Inspector exam covers topics including: Welding Processes, Welding Metallurgy, Weld Symbols (AWS A2.4), Welding Terms (AWS A3.0), Destructive Testing, and 10 more topic areas. VoltExam's free study mode organizes 493 quick-study questions by concept so you can target weak areas efficiently.