CWB WELDING INSPECTOR LEVEL 1 EXAM 2026/2027 |
CSA W59/W47.1 Compliant | Latest Updated | Verified
Q&A | Pass Guaranteed - A+ Graded
Section 1: CWB & CSA Codes Overview (W59, W47.1, W48) -
Q1-25
Q1. According to CSA W59-22, what is the maximum allowable deviation from the
specified root opening for a groove weld in static loading applications when no
tolerance is specified on the drawing?
A. ±1.0 mm
B. ±2.0 mm
C. ±3.0 mm
D. ±5.0 mm
C. ±2.0 mm [CORRECT]
Rationale: CSA W59-22 Table 5.2 specifies ±2.0 mm for root opening tolerance when
not otherwise specified on drawings. Option A is too restrictive (typically for critical
applications with supplementary requirements), option C exceeds the standard
tolerance, and option D would cause excessive root opening leading to burn-through
or incomplete fusion.
Correct Answer: C
Q2. Under CSA W47.1-22, which of the following organizations is recognized as
the certifying body for companies engaged in fusion welding of steel?
,A. CSA International
B. Canadian Welding Bureau (CWB)
C. American Welding Society (AWS)
D. Canadian Standards Association (CSA)
B. Canadian Welding Bureau (CWB) [CORRECT]
Rationale: CSA W47.1-22 explicitly designates the CWB as the certifying body for
company certification. Option A certifies products to CSA standards but does not
certify welding companies; option C is the U.S.-based organization; option D
develops standards but does not perform certification activities.
Correct Answer: B
Q3. In CSA W59-22, what is the minimum preheat and interpass temperature
required for welding ASTM A572 Grade 50 steel with a thickness of 25 mm when
the base metal temperature is below 0°C?
A. 10°C
B. 20°C
C. 50°C
D. 100°C
B. 20°C [CORRECT]
Rationale: CSA W59-22 Table 5.3 requires 20°C minimum preheat for Group II steels
(including A572 Gr.50) ≤25 mm thick when base metal temperature is below 0°C.
Option A is below the minimum threshold; option C applies to thicker sections or
lower temperatures; option D is excessive for this thickness and would not be
economically justified per the code.
Correct Answer: B
Q4. A CWB Level 1 Welding Inspector is reviewing a WPS qualified to CSA W47.1.
Which of the following is NOT within the scope of a Level 1 inspector's authority?
,A. Conducting visual inspection of production welds
B. Reviewing welder qualification test records for completeness
C. Approving welding procedure specifications
D. Measuring weld dimensions with calibrated gauges
C. Approving welding procedure specifications [CORRECT]
Rationale: Per W178.2, Level 1 inspectors perform inspection and record review but
cannot approve WPS/PQR—that requires Level 2 or Engineering authority. Options A,
B, and D are all within the Level 1 scope of practice.
Correct Answer: C
Q5. According to CSA W48-22, what does the electrode classification E4918-1-H4R
indicate regarding hydrogen control?
A. Hydrogen content ≤4 mL/100g with moisture-resistant coating
B. Hydrogen content ≤8 mL/100g with moisture-resistant coating
C. Hydrogen content ≤4 mL/100g without moisture resistance
D. The "R" indicates rutile coating type
A. Hydrogen content ≤4 mL/100g with moisture-resistant coating [CORRECT]
Rationale: In CSA W48-22, the suffix "-H4R" indicates diffusible hydrogen ≤4
mL/100g and moisture-resistant coating. Option B describes H8R; option C describes
H4 without moisture resistance; option D incorrectly interprets "R" as rutile rather
than moisture-resistant.
Correct Answer: A
Q6. Under CSA W59-22, what is the maximum allowable undercut depth for a
statically loaded structure in tension when the weld is subject to normal
inspection?
A. 0.25 mm
B. 0.5 mm
, C. 1.0 mm
D. 1.5 mm
B. 0.5 mm [CORRECT]
Rationale: CSA W59-22 Table 5.11 specifies 0.5 mm maximum undercut for statically
loaded tension members under normal inspection. Option A is the limit for cyclically
loaded structures; option C and D exceed all standard acceptance criteria and would
require engineering evaluation.
Correct Answer: B
Q7. Which CSA standard governs the certification of welding inspectors in
Canada?
A. CSA W59
B. CSA W47.1
C. CSA W178.2
D. CSA W48
C. CSA W178.2 [CORRECT]
Rationale: CSA W178.2 is the standard for certification of welding inspectors, defining
Level 1, 2, and 3 competencies. W59 covers welded steel construction, W47.1 covers
company certification, and W48 covers filler metals.
Correct Answer: C
Q8. In CSA W59-22, what is the minimum fillet weld size permitted for a 19 mm
thick plate in a statically loaded structure?
A. 5 mm
B. 6 mm
C. 8 mm
D. 10 mm
B. 6 mm [CORRECT]
Rationale: CSA W59-22 Table 5.8 specifies a minimum fillet weld size of 6 mm for
CSA W59/W47.1 Compliant | Latest Updated | Verified
Q&A | Pass Guaranteed - A+ Graded
Section 1: CWB & CSA Codes Overview (W59, W47.1, W48) -
Q1-25
Q1. According to CSA W59-22, what is the maximum allowable deviation from the
specified root opening for a groove weld in static loading applications when no
tolerance is specified on the drawing?
A. ±1.0 mm
B. ±2.0 mm
C. ±3.0 mm
D. ±5.0 mm
C. ±2.0 mm [CORRECT]
Rationale: CSA W59-22 Table 5.2 specifies ±2.0 mm for root opening tolerance when
not otherwise specified on drawings. Option A is too restrictive (typically for critical
applications with supplementary requirements), option C exceeds the standard
tolerance, and option D would cause excessive root opening leading to burn-through
or incomplete fusion.
Correct Answer: C
Q2. Under CSA W47.1-22, which of the following organizations is recognized as
the certifying body for companies engaged in fusion welding of steel?
,A. CSA International
B. Canadian Welding Bureau (CWB)
C. American Welding Society (AWS)
D. Canadian Standards Association (CSA)
B. Canadian Welding Bureau (CWB) [CORRECT]
Rationale: CSA W47.1-22 explicitly designates the CWB as the certifying body for
company certification. Option A certifies products to CSA standards but does not
certify welding companies; option C is the U.S.-based organization; option D
develops standards but does not perform certification activities.
Correct Answer: B
Q3. In CSA W59-22, what is the minimum preheat and interpass temperature
required for welding ASTM A572 Grade 50 steel with a thickness of 25 mm when
the base metal temperature is below 0°C?
A. 10°C
B. 20°C
C. 50°C
D. 100°C
B. 20°C [CORRECT]
Rationale: CSA W59-22 Table 5.3 requires 20°C minimum preheat for Group II steels
(including A572 Gr.50) ≤25 mm thick when base metal temperature is below 0°C.
Option A is below the minimum threshold; option C applies to thicker sections or
lower temperatures; option D is excessive for this thickness and would not be
economically justified per the code.
Correct Answer: B
Q4. A CWB Level 1 Welding Inspector is reviewing a WPS qualified to CSA W47.1.
Which of the following is NOT within the scope of a Level 1 inspector's authority?
,A. Conducting visual inspection of production welds
B. Reviewing welder qualification test records for completeness
C. Approving welding procedure specifications
D. Measuring weld dimensions with calibrated gauges
C. Approving welding procedure specifications [CORRECT]
Rationale: Per W178.2, Level 1 inspectors perform inspection and record review but
cannot approve WPS/PQR—that requires Level 2 or Engineering authority. Options A,
B, and D are all within the Level 1 scope of practice.
Correct Answer: C
Q5. According to CSA W48-22, what does the electrode classification E4918-1-H4R
indicate regarding hydrogen control?
A. Hydrogen content ≤4 mL/100g with moisture-resistant coating
B. Hydrogen content ≤8 mL/100g with moisture-resistant coating
C. Hydrogen content ≤4 mL/100g without moisture resistance
D. The "R" indicates rutile coating type
A. Hydrogen content ≤4 mL/100g with moisture-resistant coating [CORRECT]
Rationale: In CSA W48-22, the suffix "-H4R" indicates diffusible hydrogen ≤4
mL/100g and moisture-resistant coating. Option B describes H8R; option C describes
H4 without moisture resistance; option D incorrectly interprets "R" as rutile rather
than moisture-resistant.
Correct Answer: A
Q6. Under CSA W59-22, what is the maximum allowable undercut depth for a
statically loaded structure in tension when the weld is subject to normal
inspection?
A. 0.25 mm
B. 0.5 mm
, C. 1.0 mm
D. 1.5 mm
B. 0.5 mm [CORRECT]
Rationale: CSA W59-22 Table 5.11 specifies 0.5 mm maximum undercut for statically
loaded tension members under normal inspection. Option A is the limit for cyclically
loaded structures; option C and D exceed all standard acceptance criteria and would
require engineering evaluation.
Correct Answer: B
Q7. Which CSA standard governs the certification of welding inspectors in
Canada?
A. CSA W59
B. CSA W47.1
C. CSA W178.2
D. CSA W48
C. CSA W178.2 [CORRECT]
Rationale: CSA W178.2 is the standard for certification of welding inspectors, defining
Level 1, 2, and 3 competencies. W59 covers welded steel construction, W47.1 covers
company certification, and W48 covers filler metals.
Correct Answer: C
Q8. In CSA W59-22, what is the minimum fillet weld size permitted for a 19 mm
thick plate in a statically loaded structure?
A. 5 mm
B. 6 mm
C. 8 mm
D. 10 mm
B. 6 mm [CORRECT]
Rationale: CSA W59-22 Table 5.8 specifies a minimum fillet weld size of 6 mm for
