CWB WELDING INSPECTOR LEVEL 3 EXAM 2026/2027 | 200
PRACTICE QUESTIONS & VERIFIED ANSWERS | CSA W59 &
W47.1 COMPLETE A+ GUIDE
SECTION 1: CSA W59 – WELDED STEEL CONSTRUCTION STANDARD (Questions 1–50)
1. According to CSA W59, what is the minimum base metal thickness to which the standard applies?
A) 1 mm
B) 2 mm
C) 3 mm (1/8 in)
D) 5 mm
Correct Answer: C) 3 mm (1/8 in)
Rationale: CSA W59 applies to the welding of base metals 3 mm (1/8 in) and thicker. Base metals thinner
than 3 mm welded to base metals 3 mm and thicker are also covered by AWS D1.3/AWS D1.3M in
conjunction with CSA W59.
2. CSA W59 covers welding requirements for which type of steel construction?
A) Stainless steel only
B) Carbon and lowalloy welded steel construction
C) Aluminum construction only
D) Pressure vessel construction
Correct Answer: B) Carbon and lowalloy welded steel construction
,Rationale: CSA W59 covers welding requirements for carbon and lowalloy welded steel construction,
with the exception of those types listed in Clause 1.2.
3. Which of the following welding processes is NOT included in CSA W59?
A) Shielded Metal Arc Welding (SMAW)
B) Submerged Arc Welding (SAW)
C) Laser Beam Welding (LBW)
D) Gas Metal Arc Welding (GMAW)
Correct Answer: C) Laser Beam Welding (LBW)
Rationale: CSA W59 includes SMAW, SAW, GMAW, FCAW, MCAW, ESW, EGW, and stud welding (SW)
processes. Laser beam welding is not included in this standard.
4. According to CSA W59, surfaces to be welded shall be free of contaminants within what distance of
any weld location?
A) 25 mm (1 in)
B) 50 mm (2 in)
C) 75 mm (3 in)
D) 100 mm (4 in)
Correct Answer: B) 50 mm (2 in)
,Rationale: CSA W59 Clause 5.3.1 specifies that surfaces to be welded shall be free, within 50 mm (2 in)
of any weld locations, of moisture and other foreign material that will prevent proper welding.
5. What is the classification of a welder's ability to deposit tack welds under CSA W47.1?
A) T
B) S
C) WT
D) FW
Correct Answer: C) WT
Rationale: The "WT" classification refers to a welder's ability to deposit tack welds.
6. For arc spot weld procedure qualifications under CSA W47.1, a test on a given decking thickness T
qualifies procedures for materials in what range?
A) 0.5T to 1.5T
B) 0.75T to 1.38T
C) 0.8T to 1.2T
D) T to 2T
Correct Answer: B) 0.75T to 1.38T
Rationale: For arc spot welds, a test on a given decking thickness T shall qualify a procedure within the
same scope of essential variables for materials in the range of 0.75T to 1.38T to a maximum of 3 mm.
, 7. Which of the following best defines the primary responsibility of a Level 3 Welding Inspector?
A) Performing welds to meet production schedules
B) Supervising, certifying, and approving welding inspections and ensuring compliance with codes and
standards
C) Operating NDT equipment exclusively
D) Drafting welding procedures only
Correct Answer: B) Supervising, certifying, and approving welding inspections and ensuring compliance
with codes and standards
Rationale: A Level 3 Welding Inspector oversees the inspection process, ensures compliance with
standards such as CSA W47.1, and certifies inspection results.
8. According to CSA W47.1, a company seeking certification must meet minimum requirements
established by which organization?
A) American Welding Society (AWS)
B) Canadian Welding Bureau (CWB)
C) American Society of Mechanical Engineers (ASME)
D) International Organization for Standardization (ISO)
Correct Answer: B) Canadian Welding Bureau (CWB)
PRACTICE QUESTIONS & VERIFIED ANSWERS | CSA W59 &
W47.1 COMPLETE A+ GUIDE
SECTION 1: CSA W59 – WELDED STEEL CONSTRUCTION STANDARD (Questions 1–50)
1. According to CSA W59, what is the minimum base metal thickness to which the standard applies?
A) 1 mm
B) 2 mm
C) 3 mm (1/8 in)
D) 5 mm
Correct Answer: C) 3 mm (1/8 in)
Rationale: CSA W59 applies to the welding of base metals 3 mm (1/8 in) and thicker. Base metals thinner
than 3 mm welded to base metals 3 mm and thicker are also covered by AWS D1.3/AWS D1.3M in
conjunction with CSA W59.
2. CSA W59 covers welding requirements for which type of steel construction?
A) Stainless steel only
B) Carbon and lowalloy welded steel construction
C) Aluminum construction only
D) Pressure vessel construction
Correct Answer: B) Carbon and lowalloy welded steel construction
,Rationale: CSA W59 covers welding requirements for carbon and lowalloy welded steel construction,
with the exception of those types listed in Clause 1.2.
3. Which of the following welding processes is NOT included in CSA W59?
A) Shielded Metal Arc Welding (SMAW)
B) Submerged Arc Welding (SAW)
C) Laser Beam Welding (LBW)
D) Gas Metal Arc Welding (GMAW)
Correct Answer: C) Laser Beam Welding (LBW)
Rationale: CSA W59 includes SMAW, SAW, GMAW, FCAW, MCAW, ESW, EGW, and stud welding (SW)
processes. Laser beam welding is not included in this standard.
4. According to CSA W59, surfaces to be welded shall be free of contaminants within what distance of
any weld location?
A) 25 mm (1 in)
B) 50 mm (2 in)
C) 75 mm (3 in)
D) 100 mm (4 in)
Correct Answer: B) 50 mm (2 in)
,Rationale: CSA W59 Clause 5.3.1 specifies that surfaces to be welded shall be free, within 50 mm (2 in)
of any weld locations, of moisture and other foreign material that will prevent proper welding.
5. What is the classification of a welder's ability to deposit tack welds under CSA W47.1?
A) T
B) S
C) WT
D) FW
Correct Answer: C) WT
Rationale: The "WT" classification refers to a welder's ability to deposit tack welds.
6. For arc spot weld procedure qualifications under CSA W47.1, a test on a given decking thickness T
qualifies procedures for materials in what range?
A) 0.5T to 1.5T
B) 0.75T to 1.38T
C) 0.8T to 1.2T
D) T to 2T
Correct Answer: B) 0.75T to 1.38T
Rationale: For arc spot welds, a test on a given decking thickness T shall qualify a procedure within the
same scope of essential variables for materials in the range of 0.75T to 1.38T to a maximum of 3 mm.
, 7. Which of the following best defines the primary responsibility of a Level 3 Welding Inspector?
A) Performing welds to meet production schedules
B) Supervising, certifying, and approving welding inspections and ensuring compliance with codes and
standards
C) Operating NDT equipment exclusively
D) Drafting welding procedures only
Correct Answer: B) Supervising, certifying, and approving welding inspections and ensuring compliance
with codes and standards
Rationale: A Level 3 Welding Inspector oversees the inspection process, ensures compliance with
standards such as CSA W47.1, and certifies inspection results.
8. According to CSA W47.1, a company seeking certification must meet minimum requirements
established by which organization?
A) American Welding Society (AWS)
B) Canadian Welding Bureau (CWB)
C) American Society of Mechanical Engineers (ASME)
D) International Organization for Standardization (ISO)
Correct Answer: B) Canadian Welding Bureau (CWB)
