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AWS Certified Welding Inspector Practice Test

486 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. SMAW
  2. B. GMAW
  3. C. FCAW
  4. D. GTAW

Answer: D. 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. Eutectoid point
  2. B. Transformation line
  3. C. Solidus line
  4. D. Liquidus line

Answer: D. 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) + 46 (Part B practical) + 50–65 (Part C, open book). The exact count varies by state and exam version. VoltExam gives you 486 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 sponsor of the AWS Certified Welding Inspector exam does not publish a pass rate, so VoltExam does not estimate one or claim that practice predicts the result.

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 486 quick-study questions by concept so you can target weak areas efficiently.