AWS Certified Welder Structural Steel D1.1
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1. What is the primary purpose of the AWS D1.1 code?
A. To provide guidelines for painting structural steel
B. To provide standards for welding structural steel
C. To regulate the fabrication of aluminum structures
D. To establish electrical codes for welding equipment
The AWS D1.1 code sets standards for the welding of structural
steel to ensure safety and quality.
2. Which welding process is most commonly used in AWS D1.1
structural steel welding?
A. Oxy-fuel welding
B. Shielded Metal Arc Welding (SMAW)
C. Gas Tungsten Arc Welding (GTAW) for all structural joints
D. Plasma arc welding
Shielded Metal Arc Welding is widely used due to versatility,
portability, and compliance with AWS D1.1.
3. What does the “prequalified joint” category in AWS D1.1 mean?
A. A joint that requires extensive testing before welding
B. A joint that meets AWS standards without additional
qualification tests
C. A joint that can only be welded by certified welders
, D. A joint that uses non-standard filler metals
Prequalified joints are already tested and meet AWS D1.1
requirements, reducing the need for additional testing.
4. Which of the following is a critical factor in welder performance
qualification?
A. The brand of welding machine used
B. The ability to produce sound welds on test coupons
C. The color of electrode coating
D. The thickness of the workshop floor
Welder qualification is based on actual welding performance,
ensuring competency.
5. What is the minimum thickness for a fillet weld in structural steel,
unless otherwise specified?
A. 1/8 inch
B. 1/4 inch
C. 3/16 inch
D. 1/2 inch
AWS D1.1 specifies minimum fillet weld sizes to ensure sufficient
strength.
6. How should groove welds be prepared on thicker plates?
A. By painting the surface
B. By beveling edges to ensure full penetration
C. By cleaning with water only
D. By using preheating exclusively
Groove weld preparation is essential for proper penetration and
strength.
, 7. What type of joint is a “T-joint”?
A. A joint where two plates overlap completely
B. A joint where one plate is perpendicular to another
C. A joint at a 45-degree angle
D. A joint with a lap weld
In a T-joint, one member intersects another at approximately 90
degrees.
8. What is the purpose of a backing bar in welding?
A. To decorate the weld
B. To support the root of a weld and ensure full penetration
C. To cool the weld faster
D. To reduce electrode consumption
Backing bars provide support and help achieve complete fusion at
the root.
9. According to AWS D1.1, what is the maximum allowed weld
discontinuity in a production weld before it must be repaired?
A. 1/4 inch
B. 1/2 inch
C. Depends on weld type and location as specified in D1.1
D. There is no limit
AWS D1.1 sets limits for weld discontinuities to ensure structural
integrity.
10. Which of the following is an acceptable method of
preheating steel before welding?
A. Using ice water
B. Using torches, induction heaters, or electrical resistance
heaters
Exam With Correct Answers (Verified Answers)
Plus Rationales 2026 Q&A | Instant Download
1. What is the primary purpose of the AWS D1.1 code?
A. To provide guidelines for painting structural steel
B. To provide standards for welding structural steel
C. To regulate the fabrication of aluminum structures
D. To establish electrical codes for welding equipment
The AWS D1.1 code sets standards for the welding of structural
steel to ensure safety and quality.
2. Which welding process is most commonly used in AWS D1.1
structural steel welding?
A. Oxy-fuel welding
B. Shielded Metal Arc Welding (SMAW)
C. Gas Tungsten Arc Welding (GTAW) for all structural joints
D. Plasma arc welding
Shielded Metal Arc Welding is widely used due to versatility,
portability, and compliance with AWS D1.1.
3. What does the “prequalified joint” category in AWS D1.1 mean?
A. A joint that requires extensive testing before welding
B. A joint that meets AWS standards without additional
qualification tests
C. A joint that can only be welded by certified welders
, D. A joint that uses non-standard filler metals
Prequalified joints are already tested and meet AWS D1.1
requirements, reducing the need for additional testing.
4. Which of the following is a critical factor in welder performance
qualification?
A. The brand of welding machine used
B. The ability to produce sound welds on test coupons
C. The color of electrode coating
D. The thickness of the workshop floor
Welder qualification is based on actual welding performance,
ensuring competency.
5. What is the minimum thickness for a fillet weld in structural steel,
unless otherwise specified?
A. 1/8 inch
B. 1/4 inch
C. 3/16 inch
D. 1/2 inch
AWS D1.1 specifies minimum fillet weld sizes to ensure sufficient
strength.
6. How should groove welds be prepared on thicker plates?
A. By painting the surface
B. By beveling edges to ensure full penetration
C. By cleaning with water only
D. By using preheating exclusively
Groove weld preparation is essential for proper penetration and
strength.
, 7. What type of joint is a “T-joint”?
A. A joint where two plates overlap completely
B. A joint where one plate is perpendicular to another
C. A joint at a 45-degree angle
D. A joint with a lap weld
In a T-joint, one member intersects another at approximately 90
degrees.
8. What is the purpose of a backing bar in welding?
A. To decorate the weld
B. To support the root of a weld and ensure full penetration
C. To cool the weld faster
D. To reduce electrode consumption
Backing bars provide support and help achieve complete fusion at
the root.
9. According to AWS D1.1, what is the maximum allowed weld
discontinuity in a production weld before it must be repaired?
A. 1/4 inch
B. 1/2 inch
C. Depends on weld type and location as specified in D1.1
D. There is no limit
AWS D1.1 sets limits for weld discontinuities to ensure structural
integrity.
10. Which of the following is an acceptable method of
preheating steel before welding?
A. Using ice water
B. Using torches, induction heaters, or electrical resistance
heaters
