CWB WELDING INSPECTOR LEVEL 2 EXAM – QUESTIONS AND ANSWERS | VERIFIED AND WELL DETAILED
ANSWERS | PLUS RATIONALES | GUARANTEED PASS | LATEST EXAM UPDATE
Core Domains:
1. Welding Processes and Procedures
2. Weld Metallurgy and Material Properties
3. Destructive and Non-Destructive Testing (NDT)
4. Welding Codes, Standards, and Regulatory Compliance (CSA W59, W47.1, etc.)
5. Weld Defects: Causes, Identification, and Remediation
6. Welding Inspection, Documentation, and Quality Control
7. Health, Safety, and Environmental Practices in Welding
8. Ethics and Professional Responsibility of the Welding Inspector
Introduction:
This comprehensive examination is designed to rigorously assess the knowledge, skills, and professional judgment
required of a CWB Welding Inspector Level 2. The exam evaluates a candidate's mastery across a broad spectrum, from
foundational scientific principles and welding codes to practical, scenario-based decision-making. Candidates will be
challenged on their ability to interpret complex welding procedures, identify and classify weld discontinuities, and apply
regulatory standards to ensure structural integrity. The multiple-choice format tests both theoretical understanding and
,the practical application of inspection protocols, emphasizing real-world problem-solving, ethical conduct, and the
critical role of the inspector in ensuring public safety and quality assurance in welded construction.
SECTION ONE: QUESTIONS 1 – 100
1. A welding inspector is reviewing a Welding Procedure Specification (WPS) for a project. Which of the following
elements is considered an essential variable that, if changed, would require a new WPS qualification for the
SMAW process?
A. A change in the welding position from flat to horizontal.
B. A change in the filler metal classification from E7018 to E7016.
C. A change in the type of backing from copper to steel.
D. A change in the root opening from 2 mm to 3 mm.
🟢 Correct answer: B
🔴 Explanation: For SMAW, the filler metal classification is considered an essential variable as it directly affects the
mechanical properties and chemical composition of the weld deposit. A change in classification (e.g., E7018 to
E7016) alters the flux and alloy content, necessitating a new procedure qualification to verify the weld meets the
required properties.
,2. During a radiographic inspection, an indication appears as a dark, round, and solid image with a distinct
outline. It is most likely a:
A. Lack of fusion.
B. Slag inclusion.
C. Tungsten inclusion.
D. Gas pore.
🟢 Correct answer: C
🔴 Explanation: Tungsten inclusions appear as very dense, round or irregularly shaped indications that are light
(white) on a radiograph due to the high density of tungsten. However, a dark, round, and solid indication with a
distinct outline is characteristic of a gas pore. The question states a "dark" image, which indicates a less dense
material than the base metal, such as a gas void.
3. According to CSA W47.1, what is the minimum required level of certification for a welding supervisor
overseeing welding in a Division 2 or 3 welding shop?
A. Level 1
B. Level 2
C. Level 3
D. No formal certification is required.
🟢 Correct answer: B
, 🔴 Explanation: CSA W47.1 specifies that a welding supervisor in a Division 2 or 3 welding shop must hold a
minimum CWB Level 2 certification to adequately oversee the welding operations and ensure compliance with the
standard.
4. A welder is using a GTAW process on aluminum. The inspector observes that the weld pool appears sluggish
and the arc is unstable. What is the most likely cause?
A. Insufficient gas flow.
B. Too much tungsten stick-out.
C. The use of argon gas.
D. The use of an AC balance setting that is too high.
🟢 Correct answer: D
🔴 Explanation: For GTAW of aluminum, an AC balance setting that is too far into the cleaning phase can cause the
arc to be unstable and the weld pool to appear sluggish. The high cleaning action can overheat the tungsten and
broaden the arc, reducing its focus and heat concentration.
5. Which of the following statements regarding hydrogen-induced cracking (HIC) is TRUE?
A. It is more commonly found in austenitic stainless steels.
B. It is primarily caused by the presence of hydrogen and high restraint.
C. It can be completely eliminated by preheating to 100°C.
D. It typically occurs at high temperatures immediately after welding.
ANSWERS | PLUS RATIONALES | GUARANTEED PASS | LATEST EXAM UPDATE
Core Domains:
1. Welding Processes and Procedures
2. Weld Metallurgy and Material Properties
3. Destructive and Non-Destructive Testing (NDT)
4. Welding Codes, Standards, and Regulatory Compliance (CSA W59, W47.1, etc.)
5. Weld Defects: Causes, Identification, and Remediation
6. Welding Inspection, Documentation, and Quality Control
7. Health, Safety, and Environmental Practices in Welding
8. Ethics and Professional Responsibility of the Welding Inspector
Introduction:
This comprehensive examination is designed to rigorously assess the knowledge, skills, and professional judgment
required of a CWB Welding Inspector Level 2. The exam evaluates a candidate's mastery across a broad spectrum, from
foundational scientific principles and welding codes to practical, scenario-based decision-making. Candidates will be
challenged on their ability to interpret complex welding procedures, identify and classify weld discontinuities, and apply
regulatory standards to ensure structural integrity. The multiple-choice format tests both theoretical understanding and
,the practical application of inspection protocols, emphasizing real-world problem-solving, ethical conduct, and the
critical role of the inspector in ensuring public safety and quality assurance in welded construction.
SECTION ONE: QUESTIONS 1 – 100
1. A welding inspector is reviewing a Welding Procedure Specification (WPS) for a project. Which of the following
elements is considered an essential variable that, if changed, would require a new WPS qualification for the
SMAW process?
A. A change in the welding position from flat to horizontal.
B. A change in the filler metal classification from E7018 to E7016.
C. A change in the type of backing from copper to steel.
D. A change in the root opening from 2 mm to 3 mm.
🟢 Correct answer: B
🔴 Explanation: For SMAW, the filler metal classification is considered an essential variable as it directly affects the
mechanical properties and chemical composition of the weld deposit. A change in classification (e.g., E7018 to
E7016) alters the flux and alloy content, necessitating a new procedure qualification to verify the weld meets the
required properties.
,2. During a radiographic inspection, an indication appears as a dark, round, and solid image with a distinct
outline. It is most likely a:
A. Lack of fusion.
B. Slag inclusion.
C. Tungsten inclusion.
D. Gas pore.
🟢 Correct answer: C
🔴 Explanation: Tungsten inclusions appear as very dense, round or irregularly shaped indications that are light
(white) on a radiograph due to the high density of tungsten. However, a dark, round, and solid indication with a
distinct outline is characteristic of a gas pore. The question states a "dark" image, which indicates a less dense
material than the base metal, such as a gas void.
3. According to CSA W47.1, what is the minimum required level of certification for a welding supervisor
overseeing welding in a Division 2 or 3 welding shop?
A. Level 1
B. Level 2
C. Level 3
D. No formal certification is required.
🟢 Correct answer: B
, 🔴 Explanation: CSA W47.1 specifies that a welding supervisor in a Division 2 or 3 welding shop must hold a
minimum CWB Level 2 certification to adequately oversee the welding operations and ensure compliance with the
standard.
4. A welder is using a GTAW process on aluminum. The inspector observes that the weld pool appears sluggish
and the arc is unstable. What is the most likely cause?
A. Insufficient gas flow.
B. Too much tungsten stick-out.
C. The use of argon gas.
D. The use of an AC balance setting that is too high.
🟢 Correct answer: D
🔴 Explanation: For GTAW of aluminum, an AC balance setting that is too far into the cleaning phase can cause the
arc to be unstable and the weld pool to appear sluggish. The high cleaning action can overheat the tungsten and
broaden the arc, reducing its focus and heat concentration.
5. Which of the following statements regarding hydrogen-induced cracking (HIC) is TRUE?
A. It is more commonly found in austenitic stainless steels.
B. It is primarily caused by the presence of hydrogen and high restraint.
C. It can be completely eliminated by preheating to 100°C.
D. It typically occurs at high temperatures immediately after welding.
