CWB Welding Inspector Level 2 Exam
Examination Questions And Correct Answers
(Verified Answers) Plus Rationales 2027 Q&A |
Instant Download Pdf
1. What is the primary responsibility of a welding inspector during an
inspection?
A. Repairing defective welds
B. Training welders on welding techniques
C. Verifying that welding work meets specified requirements
D. Designing welding procedures
Answer: C. Verifying that welding work meets specified requirements
Rationale: A welding inspector’s main responsibility is to ensure that
welding activities comply with applicable codes, standards,
specifications, and approved procedures. Inspectors do not normally
perform repairs, train welders, or design procedures, although they
may provide feedback or verify qualifications.
,2. Which document provides the detailed instructions required to
produce a specific weld?
A. Welding Procedure Specification (WPS)
B. Welder Performance Qualification (WPQ)
C. Material Test Report (MTR)
D. Inspection Report
Answer: A. Welding Procedure Specification (WPS)
Rationale: A WPS defines essential welding variables such as process,
materials, filler metals, preheat, interpass temperature, positions, and
parameters required for producing an acceptable weld. A WPQ verifies
a welder’s ability, while an MTR identifies material properties.
3. What is the purpose of a welder qualification test?
A. To determine the cost of welding
B. To verify a welder can produce acceptable welds
C. To identify base metal chemistry
D. To replace welding procedures
Answer: B. To verify a welder can produce acceptable welds
Rationale: Welder qualification tests demonstrate that a welder has
the skill and ability to produce welds meeting specified acceptance
,criteria. The test does not replace the WPS or provide material
information.
4. Which welding discontinuity is commonly caused by insufficient
cleaning between weld passes?
A. Crater crack
B. Slag inclusion
C. Undercut
D. Excessive reinforcement
Answer: B. Slag inclusion
Rationale: Slag inclusions occur when slag becomes trapped inside the
weld metal, often due to inadequate cleaning between passes,
improper technique, or incorrect electrode manipulation. Proper
cleaning and welding control help prevent this defect.
5. What type of inspection is performed before welding begins?
A. Final inspection
B. Destructive testing
C. Pre-weld inspection
D. Metallurgical testing
, Answer: C. Pre-weld inspection
Rationale: Pre-weld inspection verifies items such as material
identification, joint preparation, fit-up, welding procedure availability,
equipment condition, and welder qualifications before welding starts.
6. Which welding process uses a continuously fed wire electrode and
shielding gas?
A. SMAW
B. GTAW
C. GMAW
D. Oxy-fuel welding
Answer: C. GMAW
Rationale: Gas Metal Arc Welding (GMAW) uses a continuous wire
electrode and shielding gas to protect the molten weld pool. SMAW
uses stick electrodes, and GTAW uses a tungsten electrode.
7. What is the purpose of shielding gas in arc welding?
A. To increase base metal hardness
B. To prevent atmospheric contamination of the weld pool
Examination Questions And Correct Answers
(Verified Answers) Plus Rationales 2027 Q&A |
Instant Download Pdf
1. What is the primary responsibility of a welding inspector during an
inspection?
A. Repairing defective welds
B. Training welders on welding techniques
C. Verifying that welding work meets specified requirements
D. Designing welding procedures
Answer: C. Verifying that welding work meets specified requirements
Rationale: A welding inspector’s main responsibility is to ensure that
welding activities comply with applicable codes, standards,
specifications, and approved procedures. Inspectors do not normally
perform repairs, train welders, or design procedures, although they
may provide feedback or verify qualifications.
,2. Which document provides the detailed instructions required to
produce a specific weld?
A. Welding Procedure Specification (WPS)
B. Welder Performance Qualification (WPQ)
C. Material Test Report (MTR)
D. Inspection Report
Answer: A. Welding Procedure Specification (WPS)
Rationale: A WPS defines essential welding variables such as process,
materials, filler metals, preheat, interpass temperature, positions, and
parameters required for producing an acceptable weld. A WPQ verifies
a welder’s ability, while an MTR identifies material properties.
3. What is the purpose of a welder qualification test?
A. To determine the cost of welding
B. To verify a welder can produce acceptable welds
C. To identify base metal chemistry
D. To replace welding procedures
Answer: B. To verify a welder can produce acceptable welds
Rationale: Welder qualification tests demonstrate that a welder has
the skill and ability to produce welds meeting specified acceptance
,criteria. The test does not replace the WPS or provide material
information.
4. Which welding discontinuity is commonly caused by insufficient
cleaning between weld passes?
A. Crater crack
B. Slag inclusion
C. Undercut
D. Excessive reinforcement
Answer: B. Slag inclusion
Rationale: Slag inclusions occur when slag becomes trapped inside the
weld metal, often due to inadequate cleaning between passes,
improper technique, or incorrect electrode manipulation. Proper
cleaning and welding control help prevent this defect.
5. What type of inspection is performed before welding begins?
A. Final inspection
B. Destructive testing
C. Pre-weld inspection
D. Metallurgical testing
, Answer: C. Pre-weld inspection
Rationale: Pre-weld inspection verifies items such as material
identification, joint preparation, fit-up, welding procedure availability,
equipment condition, and welder qualifications before welding starts.
6. Which welding process uses a continuously fed wire electrode and
shielding gas?
A. SMAW
B. GTAW
C. GMAW
D. Oxy-fuel welding
Answer: C. GMAW
Rationale: Gas Metal Arc Welding (GMAW) uses a continuous wire
electrode and shielding gas to protect the molten weld pool. SMAW
uses stick electrodes, and GTAW uses a tungsten electrode.
7. What is the purpose of shielding gas in arc welding?
A. To increase base metal hardness
B. To prevent atmospheric contamination of the weld pool
