AWS Certified Welding Inspector (CWI)
Examination Questions And Correct Answers
(Verified Answers) Plus Rationales 2026 Q&A |
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1. The primary role of a Certified Welding Inspector is to
A. Perform production welding
B. Design welded structures
C. Oversee and verify weld quality
D. Approve engineering calculations
Answer: C
Rationale: A CWI’s main responsibility is inspection, ensuring welds
meet applicable codes and quality requirements.
2. Which document typically governs acceptable welding procedures
and inspection criteria?
A. Purchase order
B. Welding code or standard
C. Material safety data sheet
D. Shop traveler
Answer: B
Rationale: Welding codes and standards define requirements for
procedures, qualifications, and inspection.
3. Visual inspection should be performed
A. Only after nondestructive testing
, B. Before, during, and after welding
C. Only after welding is complete
D. Only by engineers
Answer: B
Rationale: Visual inspection at all stages helps detect issues early and
ensure compliance.
4. Which discontinuity is generally unacceptable in most structural
welds?
A. Slight weld reinforcement
B. Uniform bead appearance
C. Cracks
D. Smooth toe transition
Answer: C
Rationale: Cracks are considered serious defects and are typically not
permitted.
5. A Welding Procedure Specification (WPS) provides information
about
A. Welder wages
B. Welding variables and requirements
C. Inspection report formats
D. Contract terms
Answer: B
Rationale: A WPS defines essential, supplementary, and nonessential
welding variables.
6. Which variable change usually requires requalification of a WPS?
A. Change in electrode brand
, B. Change in essential variable beyond limits
C. Change in welder name
D. Change in inspection date
Answer: B
Rationale: Essential variable changes can affect weld quality and require
requalification.
7. Undercut is best described as
A. Excess weld metal
B. A groove melted into base metal adjacent to the weld
C. A crack within the weld metal
D. Incomplete fusion at the root
Answer: B
Rationale: Undercut reduces base metal thickness and can weaken the
joint.
8. Which measuring tool is most commonly used to check weld size?
A. Micrometer
B. Steel rule
C. Fillet weld gauge
D. Dial indicator
Answer: C
Rationale: Fillet weld gauges are specifically designed for measuring
weld leg size and throat.
9. Porosity in a weld is caused primarily by
A. Excessive heat input
B. Trapped gas during solidification
Examination Questions And Correct Answers
(Verified Answers) Plus Rationales 2026 Q&A |
Instant Download Pdf
1. The primary role of a Certified Welding Inspector is to
A. Perform production welding
B. Design welded structures
C. Oversee and verify weld quality
D. Approve engineering calculations
Answer: C
Rationale: A CWI’s main responsibility is inspection, ensuring welds
meet applicable codes and quality requirements.
2. Which document typically governs acceptable welding procedures
and inspection criteria?
A. Purchase order
B. Welding code or standard
C. Material safety data sheet
D. Shop traveler
Answer: B
Rationale: Welding codes and standards define requirements for
procedures, qualifications, and inspection.
3. Visual inspection should be performed
A. Only after nondestructive testing
, B. Before, during, and after welding
C. Only after welding is complete
D. Only by engineers
Answer: B
Rationale: Visual inspection at all stages helps detect issues early and
ensure compliance.
4. Which discontinuity is generally unacceptable in most structural
welds?
A. Slight weld reinforcement
B. Uniform bead appearance
C. Cracks
D. Smooth toe transition
Answer: C
Rationale: Cracks are considered serious defects and are typically not
permitted.
5. A Welding Procedure Specification (WPS) provides information
about
A. Welder wages
B. Welding variables and requirements
C. Inspection report formats
D. Contract terms
Answer: B
Rationale: A WPS defines essential, supplementary, and nonessential
welding variables.
6. Which variable change usually requires requalification of a WPS?
A. Change in electrode brand
, B. Change in essential variable beyond limits
C. Change in welder name
D. Change in inspection date
Answer: B
Rationale: Essential variable changes can affect weld quality and require
requalification.
7. Undercut is best described as
A. Excess weld metal
B. A groove melted into base metal adjacent to the weld
C. A crack within the weld metal
D. Incomplete fusion at the root
Answer: B
Rationale: Undercut reduces base metal thickness and can weaken the
joint.
8. Which measuring tool is most commonly used to check weld size?
A. Micrometer
B. Steel rule
C. Fillet weld gauge
D. Dial indicator
Answer: C
Rationale: Fillet weld gauges are specifically designed for measuring
weld leg size and throat.
9. Porosity in a weld is caused primarily by
A. Excessive heat input
B. Trapped gas during solidification
