AWS Certified Welding Inspector (CWI)
Examination Questions and Correct Answers
(Verified Answers) Plus Rationales 2026 Q&A |
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1. What is the primary purpose of a Welding Procedure Specification
(WPS)?
A. To define welder salaries
B. To provide detailed instructions for making welds
C. To inspect completed welds
D. To certify inspectors
Answer: B
The WPS provides specific parameters and instructions to ensure welds
are made consistently and meet code requirements.
2. Which process uses a continuously fed wire electrode and shielding
gas?
A. SMAW
B. GTAW
,C. GMAW
D. SAW
Answer: C
Gas Metal Arc Welding (GMAW) uses a consumable wire electrode and
external shielding gas.
3. What does NDT stand for in welding inspection?
A. Normal Destructive Testing
B. Non-Destructive Testing
C. Nuclear Destructive Technique
D. Neutral Defect Tolerance
Answer: B
NDT refers to testing methods that evaluate materials without causing
damage.
4. Which defect is characterized by a groove melted into the base
metal adjacent to the weld toe?
A. Porosity
B. Undercut
,C. Slag inclusion
D. Incomplete fusion
Answer: B
Undercut is a groove formed at the weld toe that reduces cross-
sectional strength.
5. What is the main function of shielding gas in welding?
A. Increase arc voltage
B. Cool the weld
C. Protect molten weld metal from contamination
D. Increase electrode consumption
Answer: C
Shielding gas prevents atmospheric contamination of the molten weld
pool.
6. Which welding process uses a flux-coated consumable electrode?
A. GMAW
B. SMAW
C. GTAW
D. PAW
, Answer: B
SMAW (Stick welding) uses a flux-coated electrode that produces
shielding gas and slag.
7. What does AWS stand for?
A. American Welding Standards
B. American Welding Society
C. Association of Welding Supervisors
D. American Workshop Standards
Answer: B
AWS is the American Welding Society, which develops welding codes
and standards.
8. What type of discontinuity is porosity?
A. Surface crack
B. Volumetric discontinuity
C. Lamellar tear
D. Linear defect
Answer: B
Porosity consists of gas pockets within the weld metal.
Examination Questions and Correct Answers
(Verified Answers) Plus Rationales 2026 Q&A |
Instant Download Pdf
1. What is the primary purpose of a Welding Procedure Specification
(WPS)?
A. To define welder salaries
B. To provide detailed instructions for making welds
C. To inspect completed welds
D. To certify inspectors
Answer: B
The WPS provides specific parameters and instructions to ensure welds
are made consistently and meet code requirements.
2. Which process uses a continuously fed wire electrode and shielding
gas?
A. SMAW
B. GTAW
,C. GMAW
D. SAW
Answer: C
Gas Metal Arc Welding (GMAW) uses a consumable wire electrode and
external shielding gas.
3. What does NDT stand for in welding inspection?
A. Normal Destructive Testing
B. Non-Destructive Testing
C. Nuclear Destructive Technique
D. Neutral Defect Tolerance
Answer: B
NDT refers to testing methods that evaluate materials without causing
damage.
4. Which defect is characterized by a groove melted into the base
metal adjacent to the weld toe?
A. Porosity
B. Undercut
,C. Slag inclusion
D. Incomplete fusion
Answer: B
Undercut is a groove formed at the weld toe that reduces cross-
sectional strength.
5. What is the main function of shielding gas in welding?
A. Increase arc voltage
B. Cool the weld
C. Protect molten weld metal from contamination
D. Increase electrode consumption
Answer: C
Shielding gas prevents atmospheric contamination of the molten weld
pool.
6. Which welding process uses a flux-coated consumable electrode?
A. GMAW
B. SMAW
C. GTAW
D. PAW
, Answer: B
SMAW (Stick welding) uses a flux-coated electrode that produces
shielding gas and slag.
7. What does AWS stand for?
A. American Welding Standards
B. American Welding Society
C. Association of Welding Supervisors
D. American Workshop Standards
Answer: B
AWS is the American Welding Society, which develops welding codes
and standards.
8. What type of discontinuity is porosity?
A. Surface crack
B. Volumetric discontinuity
C. Lamellar tear
D. Linear defect
Answer: B
Porosity consists of gas pockets within the weld metal.
