AWS Certified Welder Bridge Welding D1.5
Exam Questions and Correct Answers (Verified
Answers) Plus Rationales 2026 Q&A |
Instant Download Pdf
1. What is the primary purpose of AWS D1.5 Bridge Welding Code?
A. Plumbing installations
B. Structural steel fabrication
C. Design and welding of highway bridges
D. Electrical wiring systems
Rationale: AWS D1.5 governs welding requirements specifically for
highway bridge structures.
2. Which welding process is most commonly used in bridge
fabrication?
A. GTAW
B. Oxy-fuel welding
C. SMAW
,D. Brazing
Rationale: Shielded Metal Arc Welding is widely used due to its
versatility in field conditions.
3. What does prequalified WPS mean?
A. Requires testing every time
B. Meets code without additional qualification testing
C. Only used in laboratories
D. Not allowed in bridge welding
Rationale: Prequalified procedures meet code requirements without
further testing.
4. What is the main purpose of a WPS?
A. Material storage
B. Guide welding parameters and procedure
C. Cost estimation
D. Inspection scheduling
Rationale: WPS defines how welding must be performed.
5. Which defect is most critical in bridge welds?
,A. Excess reinforcement
B. Spatter
C. Cracks
D. Discoloration
Rationale: Cracks directly compromise structural integrity.
6. What does PQR stand for?
A. Process Quality Record
B. Procedure Qualification Record
C. Pipe Quality Report
D. Project Quality Review
Rationale: PQR documents test results validating a welding procedure.
7. Which is a common non-destructive testing method?
A. Tensile test
B. Bend test
C. Ultrasonic testing
D. Hardness test
Rationale: UT is widely used to detect internal flaws.
, 8. What is the purpose of preheat in welding?
A. Improve paint adhesion
B. Reduce cooling rate and cracking risk
C. Increase welding speed
D. Clean surface
Rationale: Preheat prevents hydrogen cracking.
9. Which electrode classification is commonly used for structural
steel?
A. E6010 only
B. E7018
C. ER70S-6
D. E308L
Rationale: E7018 provides low hydrogen and high strength.
10. What is lamellar tearing caused by?
A. Excess heat input
B. Through-thickness stress in steel plates
C. Poor shielding gas
Exam Questions and Correct Answers (Verified
Answers) Plus Rationales 2026 Q&A |
Instant Download Pdf
1. What is the primary purpose of AWS D1.5 Bridge Welding Code?
A. Plumbing installations
B. Structural steel fabrication
C. Design and welding of highway bridges
D. Electrical wiring systems
Rationale: AWS D1.5 governs welding requirements specifically for
highway bridge structures.
2. Which welding process is most commonly used in bridge
fabrication?
A. GTAW
B. Oxy-fuel welding
C. SMAW
,D. Brazing
Rationale: Shielded Metal Arc Welding is widely used due to its
versatility in field conditions.
3. What does prequalified WPS mean?
A. Requires testing every time
B. Meets code without additional qualification testing
C. Only used in laboratories
D. Not allowed in bridge welding
Rationale: Prequalified procedures meet code requirements without
further testing.
4. What is the main purpose of a WPS?
A. Material storage
B. Guide welding parameters and procedure
C. Cost estimation
D. Inspection scheduling
Rationale: WPS defines how welding must be performed.
5. Which defect is most critical in bridge welds?
,A. Excess reinforcement
B. Spatter
C. Cracks
D. Discoloration
Rationale: Cracks directly compromise structural integrity.
6. What does PQR stand for?
A. Process Quality Record
B. Procedure Qualification Record
C. Pipe Quality Report
D. Project Quality Review
Rationale: PQR documents test results validating a welding procedure.
7. Which is a common non-destructive testing method?
A. Tensile test
B. Bend test
C. Ultrasonic testing
D. Hardness test
Rationale: UT is widely used to detect internal flaws.
, 8. What is the purpose of preheat in welding?
A. Improve paint adhesion
B. Reduce cooling rate and cracking risk
C. Increase welding speed
D. Clean surface
Rationale: Preheat prevents hydrogen cracking.
9. Which electrode classification is commonly used for structural
steel?
A. E6010 only
B. E7018
C. ER70S-6
D. E308L
Rationale: E7018 provides low hydrogen and high strength.
10. What is lamellar tearing caused by?
A. Excess heat input
B. Through-thickness stress in steel plates
C. Poor shielding gas
