AWS Certified Welding Inspector (CWI)
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Question 1
The primary responsibility of an AWS Certified Welding Inspector (CWI) is to:
A. Perform all welding operations
B. Design welding equipment
C. Verify that welding activities comply with specified requirements
D. Replace the welding supervisor
Answer: C. Verify that welding activities comply with specified requirements
Explanation: A CWI’s main role is inspection and verification. The inspector
ensures that welding procedures, materials, workmanship, and acceptance
criteria meet applicable codes, standards, and specifications.
Question 2
Which AWS document provides requirements for the qualification of welding
inspectors?
A. AWS D1.1
B. AWS QC1
,C. AWS A5.1
D. AWS D10.10
Answer: B. AWS QC1
Explanation: AWS QC1 establishes the requirements for AWS Certified Welding
Inspectors, including qualification, duties, and certification requirements.
Question 3
The welding inspector should inspect:
A. Only the finished weld
B. Only welding equipment
C. Before, during, and after welding
D. Only after a failure occurs
Answer: C. Before, during, and after welding
Explanation: Effective inspection includes checking materials, fit-up, welding
parameters, workmanship, and final weld acceptance.
Question 4
A Welding Procedure Specification (WPS) is used to:
A. Record employee attendance
B. Describe how a weld is to be produced
C. Replace inspection reports
D. Measure weld hardness
Answer: B. Describe how a weld is to be produced
Explanation: A WPS provides welding variables such as process, materials, joint
design, position, heat input, and acceptance requirements.
Question 5
A welder qualification test demonstrates that:
,A. The welder can inspect welds
B. The welder can produce acceptable welds under specified conditions
C. The welder can write welding codes
D. The welder can design structures
Answer: B. The welder can produce acceptable welds under specified conditions
Explanation: Welder qualification verifies the ability of an individual to make
sound welds according to a qualified procedure.
Question 6
The most common welding process used for structural steel fabrication is:
A. Gas welding
B. Shielded Metal Arc Welding (SMAW)
C. Resistance welding
D. Brazing
Answer: B. Shielded Metal Arc Welding (SMAW)
Explanation: SMAW is widely used because of its versatility, portability, and ability
to weld many structural applications.
Question 7
The main purpose of shielding gas in welding is to:
A. Increase weld size only
B. Protect molten metal from atmospheric contamination
C. Cool the weld rapidly
D. Increase electrode length
Answer: B. Protect molten metal from atmospheric contamination
Explanation: Shielding prevents oxygen, nitrogen, and other gases from causing
weld defects such as porosity and cracking.
Question 8
Porosity in a weld is caused by:
, A. Gas trapped in solidifying weld metal
B. Excessive weld reinforcement only
C. Incorrect weld symbol placement
D. Low inspection standards
Answer: A. Gas trapped in solidifying weld metal
Explanation: Porosity occurs when gases become trapped during solidification,
often due to contamination, moisture, or improper shielding.
Question 9
Undercut is:
A. A crack inside the weld
B. A groove melted into the base metal adjacent to the weld toe
C. Excessive weld penetration
D. A welding procedure document
Answer: B. A groove melted into the base metal adjacent to the weld toe
Explanation: Undercut reduces the effective thickness of the base metal and may
weaken the joint.
Question 10
The weld toe is located:
A. At the root of the weld only
B. Where the weld face meets the base metal
C. Inside the electrode
D. At the center of the weld bead
Answer: B. Where the weld face meets the base metal
Explanation: The weld toe is the transition area between the weld face and the
base metal.
Question 11
The weld root is:
Newest Updated 150 Questions And
Correct Answers From Actual Past
Papers Exams (Graded A+) Plus
Rationales 2025|2026 Q&A | Instant
Download Pdf
Question 1
The primary responsibility of an AWS Certified Welding Inspector (CWI) is to:
A. Perform all welding operations
B. Design welding equipment
C. Verify that welding activities comply with specified requirements
D. Replace the welding supervisor
Answer: C. Verify that welding activities comply with specified requirements
Explanation: A CWI’s main role is inspection and verification. The inspector
ensures that welding procedures, materials, workmanship, and acceptance
criteria meet applicable codes, standards, and specifications.
Question 2
Which AWS document provides requirements for the qualification of welding
inspectors?
A. AWS D1.1
B. AWS QC1
,C. AWS A5.1
D. AWS D10.10
Answer: B. AWS QC1
Explanation: AWS QC1 establishes the requirements for AWS Certified Welding
Inspectors, including qualification, duties, and certification requirements.
Question 3
The welding inspector should inspect:
A. Only the finished weld
B. Only welding equipment
C. Before, during, and after welding
D. Only after a failure occurs
Answer: C. Before, during, and after welding
Explanation: Effective inspection includes checking materials, fit-up, welding
parameters, workmanship, and final weld acceptance.
Question 4
A Welding Procedure Specification (WPS) is used to:
A. Record employee attendance
B. Describe how a weld is to be produced
C. Replace inspection reports
D. Measure weld hardness
Answer: B. Describe how a weld is to be produced
Explanation: A WPS provides welding variables such as process, materials, joint
design, position, heat input, and acceptance requirements.
Question 5
A welder qualification test demonstrates that:
,A. The welder can inspect welds
B. The welder can produce acceptable welds under specified conditions
C. The welder can write welding codes
D. The welder can design structures
Answer: B. The welder can produce acceptable welds under specified conditions
Explanation: Welder qualification verifies the ability of an individual to make
sound welds according to a qualified procedure.
Question 6
The most common welding process used for structural steel fabrication is:
A. Gas welding
B. Shielded Metal Arc Welding (SMAW)
C. Resistance welding
D. Brazing
Answer: B. Shielded Metal Arc Welding (SMAW)
Explanation: SMAW is widely used because of its versatility, portability, and ability
to weld many structural applications.
Question 7
The main purpose of shielding gas in welding is to:
A. Increase weld size only
B. Protect molten metal from atmospheric contamination
C. Cool the weld rapidly
D. Increase electrode length
Answer: B. Protect molten metal from atmospheric contamination
Explanation: Shielding prevents oxygen, nitrogen, and other gases from causing
weld defects such as porosity and cracking.
Question 8
Porosity in a weld is caused by:
, A. Gas trapped in solidifying weld metal
B. Excessive weld reinforcement only
C. Incorrect weld symbol placement
D. Low inspection standards
Answer: A. Gas trapped in solidifying weld metal
Explanation: Porosity occurs when gases become trapped during solidification,
often due to contamination, moisture, or improper shielding.
Question 9
Undercut is:
A. A crack inside the weld
B. A groove melted into the base metal adjacent to the weld toe
C. Excessive weld penetration
D. A welding procedure document
Answer: B. A groove melted into the base metal adjacent to the weld toe
Explanation: Undercut reduces the effective thickness of the base metal and may
weaken the joint.
Question 10
The weld toe is located:
A. At the root of the weld only
B. Where the weld face meets the base metal
C. Inside the electrode
D. At the center of the weld bead
Answer: B. Where the weld face meets the base metal
Explanation: The weld toe is the transition area between the weld face and the
base metal.
Question 11
The weld root is:
