CWB WELDING INSPECTOR LEVEL 2 EXAM 2026/2027 |
Advanced CSA Standards | Latest Updated | Complete Q&A |
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Section 1: Advanced Code Application (W59, W47.1, W186, W55) - Questions 1-30
Q1. A structural steel project requires welding of ASTM A992 wide flange beams to
A572 Grade 50 plates. Under CSA W59-18, what is the minimum preheat and interpass
temperature required for this combination when using SMAW with E7018 electrodes
and a joint thickness of 38 mm?
A. 10°C minimum, no maximum interpass limit [CORRECT]
B. 50°C minimum, 250°C maximum interpass
C. 75°C minimum, 315°C maximum interpass
D. No preheat required if ambient temperature is above 0°C
Rationale: CSA W59-18 Table 5.2 specifies 10°C minimum preheat for SMAW with
low-hydrogen electrodes on A992/A572 steels up to 38 mm thickness. No maximum
interpass temperature is specified in W59 for these steels unless supplementary
requirements apply. Options B and C confuse requirements with higher strength steels
or W47.1 provisions. Option D ignores the mandatory minimum preheat regardless of
ambient conditions.
Correct Answer: A
,Q2. A CWB Level 2 Inspector is reviewing a company's W47.1 certification for fusion
welding of steel. The company holds Division 1 certification. Under CSA W47.1-19,
which of the following structural thickness ranges is permitted for this division without
additional testing?
A. Unlimited thickness for all joint configurations
B. Up to 25 mm for all positions, unlimited for flat position only
C. Up to 38 mm for all positions, unlimited for flat/horizontal only [CORRECT]
D. Up to 50 mm for all positions, unlimited for flat position only
Rationale: CSA W47.1-19 Table 1 defines Division 1 certification as permitting welding
up to 38 mm in all positions and unlimited thickness in the flat and horizontal positions.
Option A describes Division 2. Options B and D present incorrect thickness limits that
do not align with the W47.1 divisional structure.
Correct Answer: C
Q3. During inspection of a reinforced concrete structure, a Level 2 Inspector must verify
welding of ASTM A706 Grade 60 reinforcing bars. Under CSA W186-17, what is the
maximum carbon equivalent (CE) permitted for these bars when welded?
A. 0.35%
B. 0.40%
C. 0.45% [CORRECT]
D. 0.55%
Rationale: CSA W186-17 Section 5.1.1 limits the carbon equivalent of reinforcing bars to
0.45% when welding is required, based on the formula CE = C + Mn/6. This limit ensures
weldability and reduces cracking risk. Options A and B are below the actual limit, while D
exceeds it and would require special WPS approval.
,Correct Answer: C
Q4. A fabricator is welding structural tubing using CSA W59-18. The connection involves
a T-joint with a 10 mm thick HSS brace welded to a 16 mm thick HSS chord. The
specified electrode is E71T-1C. What is the required minimum preheat and interpass
temperature?
A. No preheat required
B. 10°C
C. 21°C [CORRECT]
D. 50°C
Rationale: CSA W59-18 Table 5.2 requires 21°C minimum preheat for FCAW (E71T-1C)
on HSS with thicknesses between 10 mm and 20 mm. The 16 mm chord thickness
governs. Option A ignores mandatory preheat. Option B applies to SMAW with
low-hydrogen electrodes on thinner sections. Option D applies to thicker sections or
higher strength steels.
Correct Answer: C
Q5. Under CSA W47.1-19 Annex B, a company seeks to extend its Division 2 certification
to include welding of stainless steel (Type 316L) using the GTAW process. What is the
minimum number of test welds required for this supplementary qualification?
A. 1 test weld in the flat position only
B. 2 test welds (1 flat, 1 vertical)
C. 2 test welds (1 groove, 1 fillet) in the flat position [CORRECT]
D. 4 test welds covering all positions
Rationale: CSA W47.1-19 Annex B requires 2 test welds for stainless steel
supplementary qualification: one groove weld and one fillet weld, both in the flat
, position, unless the company requests additional positions. Options A is insufficient. B
and D incorrectly apply carbon steel qualification requirements to stainless steel.
Correct Answer: C
Q6. A Level 2 Inspector is evaluating a WPS for welding ASTM A514 Grade B steel
(tensile strength 760 MPa) under CSA W59-18. The WPS specifies SMAW with
E11018-G electrodes, 150°C preheat, and no PWHT. What is the primary code violation?
A. E11018-G electrodes are not permitted for A514 steel
B. Preheat is insufficient; minimum 175°C required
C. PWHT is mandatory for A514 Grade B regardless of thickness [CORRECT]
D. The WPS must reference W47.1 Division 3 instead of W59
Rationale: CSA W59-18 Section 5.2.4 requires mandatory PWHT for all welds in ASTM
A514 and A852 steels regardless of thickness to temper the HAZ and reduce hardness.
Option A is incorrect as E11018-G is permitted. Option B is incorrect as 150°C meets
W59 requirements for this steel. Option D confuses company certification with welding
standard application.
Correct Answer: C
Q7. During a W47.1 audit, a Level 2 Inspector finds that a company's welding supervisor
has been absent for 45 consecutive days. The company has continued production using
a senior welder to oversee operations. Under CSA W47.1-19, what is the maximum
permitted absence of the welding supervisor before production must cease?
A. 15 days
B. 30 days [CORRECT]
C. 45 days
D. 60 days
Advanced CSA Standards | Latest Updated | Complete Q&A |
Pass Guaranteed - A+ Graded
Section 1: Advanced Code Application (W59, W47.1, W186, W55) - Questions 1-30
Q1. A structural steel project requires welding of ASTM A992 wide flange beams to
A572 Grade 50 plates. Under CSA W59-18, what is the minimum preheat and interpass
temperature required for this combination when using SMAW with E7018 electrodes
and a joint thickness of 38 mm?
A. 10°C minimum, no maximum interpass limit [CORRECT]
B. 50°C minimum, 250°C maximum interpass
C. 75°C minimum, 315°C maximum interpass
D. No preheat required if ambient temperature is above 0°C
Rationale: CSA W59-18 Table 5.2 specifies 10°C minimum preheat for SMAW with
low-hydrogen electrodes on A992/A572 steels up to 38 mm thickness. No maximum
interpass temperature is specified in W59 for these steels unless supplementary
requirements apply. Options B and C confuse requirements with higher strength steels
or W47.1 provisions. Option D ignores the mandatory minimum preheat regardless of
ambient conditions.
Correct Answer: A
,Q2. A CWB Level 2 Inspector is reviewing a company's W47.1 certification for fusion
welding of steel. The company holds Division 1 certification. Under CSA W47.1-19,
which of the following structural thickness ranges is permitted for this division without
additional testing?
A. Unlimited thickness for all joint configurations
B. Up to 25 mm for all positions, unlimited for flat position only
C. Up to 38 mm for all positions, unlimited for flat/horizontal only [CORRECT]
D. Up to 50 mm for all positions, unlimited for flat position only
Rationale: CSA W47.1-19 Table 1 defines Division 1 certification as permitting welding
up to 38 mm in all positions and unlimited thickness in the flat and horizontal positions.
Option A describes Division 2. Options B and D present incorrect thickness limits that
do not align with the W47.1 divisional structure.
Correct Answer: C
Q3. During inspection of a reinforced concrete structure, a Level 2 Inspector must verify
welding of ASTM A706 Grade 60 reinforcing bars. Under CSA W186-17, what is the
maximum carbon equivalent (CE) permitted for these bars when welded?
A. 0.35%
B. 0.40%
C. 0.45% [CORRECT]
D. 0.55%
Rationale: CSA W186-17 Section 5.1.1 limits the carbon equivalent of reinforcing bars to
0.45% when welding is required, based on the formula CE = C + Mn/6. This limit ensures
weldability and reduces cracking risk. Options A and B are below the actual limit, while D
exceeds it and would require special WPS approval.
,Correct Answer: C
Q4. A fabricator is welding structural tubing using CSA W59-18. The connection involves
a T-joint with a 10 mm thick HSS brace welded to a 16 mm thick HSS chord. The
specified electrode is E71T-1C. What is the required minimum preheat and interpass
temperature?
A. No preheat required
B. 10°C
C. 21°C [CORRECT]
D. 50°C
Rationale: CSA W59-18 Table 5.2 requires 21°C minimum preheat for FCAW (E71T-1C)
on HSS with thicknesses between 10 mm and 20 mm. The 16 mm chord thickness
governs. Option A ignores mandatory preheat. Option B applies to SMAW with
low-hydrogen electrodes on thinner sections. Option D applies to thicker sections or
higher strength steels.
Correct Answer: C
Q5. Under CSA W47.1-19 Annex B, a company seeks to extend its Division 2 certification
to include welding of stainless steel (Type 316L) using the GTAW process. What is the
minimum number of test welds required for this supplementary qualification?
A. 1 test weld in the flat position only
B. 2 test welds (1 flat, 1 vertical)
C. 2 test welds (1 groove, 1 fillet) in the flat position [CORRECT]
D. 4 test welds covering all positions
Rationale: CSA W47.1-19 Annex B requires 2 test welds for stainless steel
supplementary qualification: one groove weld and one fillet weld, both in the flat
, position, unless the company requests additional positions. Options A is insufficient. B
and D incorrectly apply carbon steel qualification requirements to stainless steel.
Correct Answer: C
Q6. A Level 2 Inspector is evaluating a WPS for welding ASTM A514 Grade B steel
(tensile strength 760 MPa) under CSA W59-18. The WPS specifies SMAW with
E11018-G electrodes, 150°C preheat, and no PWHT. What is the primary code violation?
A. E11018-G electrodes are not permitted for A514 steel
B. Preheat is insufficient; minimum 175°C required
C. PWHT is mandatory for A514 Grade B regardless of thickness [CORRECT]
D. The WPS must reference W47.1 Division 3 instead of W59
Rationale: CSA W59-18 Section 5.2.4 requires mandatory PWHT for all welds in ASTM
A514 and A852 steels regardless of thickness to temper the HAZ and reduce hardness.
Option A is incorrect as E11018-G is permitted. Option B is incorrect as 150°C meets
W59 requirements for this steel. Option D confuses company certification with welding
standard application.
Correct Answer: C
Q7. During a W47.1 audit, a Level 2 Inspector finds that a company's welding supervisor
has been absent for 45 consecutive days. The company has continued production using
a senior welder to oversee operations. Under CSA W47.1-19, what is the maximum
permitted absence of the welding supervisor before production must cease?
A. 15 days
B. 30 days [CORRECT]
C. 45 days
D. 60 days
