AWS Certified Welding Inspector (CWI)
Practice Exam Questions And Correct
Answers (Verified Answers) Plus
Rationales 2026 Q&A Instant Download
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1. What is the primary purpose of a Welding Procedure Specification (WPS)?
A. Record welder performance
B. Define welding variables and requirements
C. Track inspection reports
D. Measure weld strength
Answer: B
Rationale: A WPS provides the required parameters and conditions for
producing a sound weld.
2. Which document records the actual variables used during welding?
A. PQR
B. WPS
C. WPQ
D. RT report
Answer: A
Rationale: Procedure Qualification Record (PQR) documents actual test
results and variables.
,3. What discontinuity is caused by trapped gas?
A. Slag inclusion
B. Porosity
C. Crack
D. Undercut
Answer: B
Rationale: Porosity forms when gas is trapped in solidifying weld metal.
4. Undercut is best described as:
A. Excess weld metal
B. Groove melted into base metal
C. Internal crack
D. Surface porosity
Answer: B
Rationale: Undercut reduces cross-sectional thickness at the weld toe.
5. Which inspection method uses sound waves?
A. RT
B. UT
C. MT
D. PT
Answer: B
Rationale: Ultrasonic Testing uses high-frequency sound waves to detect
flaws.
6. What does SMAW stand for?
A. Shielded Metal Arc Welding
B. Submerged Metal Arc Welding
C. Surface Melt Arc Welding
D. Shield Melt Alloy Welding
Answer: A
Rationale: SMAW is a manual arc welding process using coated
electrodes.
, 7. Which electrode coating produces deep penetration?
A. Cellulosic
B. Rutile
C. Basic
D. Iron powder
Answer: A
Rationale: Cellulosic coatings generate high arc force and deep
penetration.
8. What is the function of flux?
A. Increase speed
B. Protect molten weld
C. Cool weld
D. Strengthen base metal
Answer: B
Rationale: Flux shields molten metal from atmospheric contamination.
9. What type of crack occurs at high temperatures?
A. Cold crack
B. Hot crack
C. Fatigue crack
D. Stress crack
Answer: B
Rationale: Hot cracks form during solidification at elevated temperatures.
10.Which test detects surface-breaking flaws only?
A. UT
B. RT
C. PT
D. ET
Answer: C
Rationale: Liquid penetrant testing reveals surface discontinuities.
11.What is weld reinforcement?
A. Root penetration
Practice Exam Questions And Correct
Answers (Verified Answers) Plus
Rationales 2026 Q&A Instant Download
1. What is the primary purpose of a Welding Procedure Specification (WPS)?
A. Record welder performance
B. Define welding variables and requirements
C. Track inspection reports
D. Measure weld strength
Answer: B
Rationale: A WPS provides the required parameters and conditions for
producing a sound weld.
2. Which document records the actual variables used during welding?
A. PQR
B. WPS
C. WPQ
D. RT report
Answer: A
Rationale: Procedure Qualification Record (PQR) documents actual test
results and variables.
,3. What discontinuity is caused by trapped gas?
A. Slag inclusion
B. Porosity
C. Crack
D. Undercut
Answer: B
Rationale: Porosity forms when gas is trapped in solidifying weld metal.
4. Undercut is best described as:
A. Excess weld metal
B. Groove melted into base metal
C. Internal crack
D. Surface porosity
Answer: B
Rationale: Undercut reduces cross-sectional thickness at the weld toe.
5. Which inspection method uses sound waves?
A. RT
B. UT
C. MT
D. PT
Answer: B
Rationale: Ultrasonic Testing uses high-frequency sound waves to detect
flaws.
6. What does SMAW stand for?
A. Shielded Metal Arc Welding
B. Submerged Metal Arc Welding
C. Surface Melt Arc Welding
D. Shield Melt Alloy Welding
Answer: A
Rationale: SMAW is a manual arc welding process using coated
electrodes.
, 7. Which electrode coating produces deep penetration?
A. Cellulosic
B. Rutile
C. Basic
D. Iron powder
Answer: A
Rationale: Cellulosic coatings generate high arc force and deep
penetration.
8. What is the function of flux?
A. Increase speed
B. Protect molten weld
C. Cool weld
D. Strengthen base metal
Answer: B
Rationale: Flux shields molten metal from atmospheric contamination.
9. What type of crack occurs at high temperatures?
A. Cold crack
B. Hot crack
C. Fatigue crack
D. Stress crack
Answer: B
Rationale: Hot cracks form during solidification at elevated temperatures.
10.Which test detects surface-breaking flaws only?
A. UT
B. RT
C. PT
D. ET
Answer: C
Rationale: Liquid penetrant testing reveals surface discontinuities.
11.What is weld reinforcement?
A. Root penetration
