AWS Certified Welding Inspector (CWI) Part B Practice Test

133 questions available

Build your confidence for AWS Certified Welding Inspector (CWI) Part B. Practice the concepts, understand the answers, and strengthen your knowledge one question at a time.

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Certification exam
46 Exam questions
Your practice
133 Practice questions
2 hours 13 minutes Practice Time
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Exam overview and details

The AWS Certified Welding Inspector (CWI) Part B examination represents a critical milestone for welding professionals seeking to validate their technical expertise in weld inspection and quality assurance. This certification, administered by the American Welding Society (AWS), focuses specifically on the practical and theoretical knowledge required to perform comprehensive weld evaluations according to industry standards. Part B rigorously assesses a candidate's ability to apply inspection principles, interpret codes and specifications, identify discontinuities, and utilize both destructive and non-destructive testing methodologies. Achieving this credential signifies more than just passing a test; it demonstrates a professional's commitment to upholding the highest standards of structural integrity, safety, and quality in welding operations across industries such as construction, manufacturing, pipeline, and aerospace. Certified professionals are recognized as essential stakeholders in project safety and compliance, directly impacting the reliability of critical infrastructure.

Sample Questions

Choose an answer and explore the explanation to see how practice works.

Acceptance Criteria Application (BoS Tables, Code Clauses)

At a Part B acceptance station, the exhibit identifies the application as performance qualification groove. The measured condition is: a single pore measures 2.4 mm. What is the correct disposition?

Documentation, Reporting, Disposition

At the end of a Part B station, you must choose the best inspection record/disposition. The situation is that a bend specimen has transverse grinding marks called out by the question. Which record is most defensible?

Welding Procedure Specification (WPS) Conformance

During the Part B document review, compare the WPS/PQR exhibit with the inspected weld. WPS references two PQRs; only one supports the filler metal classification used. What should the inspector conclude?

Discontinuity Identification (VT findings)

During Part B visual inspection of groove replica G-6, the examiner asks you to classify the primary indication before making an acceptance decision. You observe cover pass reinforcement is smooth but transitions abruptly at one toe. Which finding should be recorded first?

Discontinuity Identification (VT findings)

During Part B visual inspection of groove replica G-12, the examiner asks you to classify the primary indication before making an acceptance decision. You observe lack of coalescence visible between the weld bead and one groove face. Which finding should be recorded first?

Career Opportunities & Salary

Median salary: $53,750– Welders, Cutters, Solderers, and Brazers

Source: BLS Occupational Employment and Wage Statistics, May 2025 -- Welders, Cutters, Solderers, and Brazers (SOC 51-4121), US national. Occupation median, not a certification salary. (2025)

Welders, Cutters, Solderers, and Brazers

Exam insights and study advice

Earning the AWS CWI Part B certification is a definitive career differentiator that establishes your authority and competence in the welding inspection field. It is a globally recognized credential that signals to employers, clients, and regulatory bodies that you possess the validated skills to ensure weld quality and code compliance. This certification directly translates to enhanced career opportunities, increased earning potential, and greater professional responsibility. It is often a mandatory requirement for lead inspector roles on major projects and is a cornerstone for career advancement into quality management, auditing, and consulting positions. In an industry where safety and integrity are paramount, the CWI credential provides the professional recognition and trust necessary to advance and lead.

What this exam covers

01Destructive Testing

02Inspection Documentation

03NDT Methods

04Visual Weld Inspection

05Weld Discontinuities

06Weld Inspection Techniques

07Weld Quality Standards

08Welding Symbols

Exam Details CWI-Part-B

Exam Code CWI-Part-B
Vendor AWS
Exam questions 46

Frequently Asked Questions

What is the primary focus of the CWI Part B exam compared to Part A?

How critical is hands-on visual inspection skill for Part B?

What role do welding symbols play in the Part B exam?

Which NDT methods are most emphasized in the CWI Part B syllabus?

How important is knowledge of specific codes like AWS D1.1?