LATEST AWS D1.5 BRIDGE WELDING CODE
CERTIFICATION EXAM OFFERED BY AMERICAN
WELDING SOCIETY (AWS) | Q&A WITH
RATIONALES
1. Which AWS document is the primary code for
welding of steel bridges?
A) AWS D1.1
B) AWS D1.2
C) AWS D1.5
D) AWS D1.8
Correct answer: C
Rationale: AWS D1.5 (AASHTO/AWS Bridge Welding
Code) is the primary code for welding of steel
bridges and is issued jointly by AWS and AASHTO.
2. What is the minimum base metal thickness for
which AWS D1.5 applies?
A) 1/16 inch
B) 1/8 inch
C) 3 mm (approx. 1/8 inch)
,D) 3 mm (approx. 1/8 inch) and thicker
Correct answer: D
Rationale: AWS D1.5 applies to the welding of base
metals 3 mm and thicker, which is approximately 1/8
inch.
3. Which base metal specification is primarily
required for bridge steel under AWS D1.5?
A) ASTM A36
B) ASTM A572 Grade 50
C) ASTM A709 / AASHTO M 270
D) ASTM A992
Correct answer: C
Rationale: AWS D1.5 requires the base material to
be AASHTO M 270 / ASTM A709, which is the
standard specification for structural steel for
bridges.
4. Which of the following welding processes is
prequalified under AWS D1.5 without qualification
testing?
A) Gas Metal Arc Welding (GMAW)
,B) Flux Cored Arc Welding (FCAW)
C) Submerged Arc Welding (SAW)
D) Shielded Metal Arc Welding (SMAW)
Correct answer: D
Rationale: In D1.5, only SMAW WPSs are
prequalified, as long as they are in accordance with
other sections of the code. FCAW and SAW WPSs
are not prequalified and have to be tested. D1.5
does not provide for prequalified welding except
with low hydrogen SMAW electrodes.
5. Which welding processes are permitted for
welding ASTM A709 Grade 50CR under AWS D1.5?
A) Only SMAW
B) Only FCAW
C) SMAW, FCAW, GMAW, and SAW (except ESW and
EGW)
D) Only GMAW and SAW
Correct answer: C
Rationale: The welding processes listed in
AASHTO/AWS D1.5 Clause 1.3.1, with the exception
, of ESW and EGW, are permitted for welding ASTM
A709 Grade 50CR.
6. In AWS D1.5, the term "CJP" stands for:
A) Complete Joint Penetration
B) Circular Joint Profile
C) Continuous Joint Procedure
D) Cold Joint Process
Correct answer: A
Rationale: CJP (Complete Joint Penetration) is a
groove weld where the weld metal extends through
the full thickness of the joint, often required for
primary structural connections in bridges.
7. Section 12 of AWS D1.5 is titled:
A) Welding Procedure Qualification
B) Inspection and Acceptance Criteria
C) AASHTO/AWS Fracture Control Plan (FCP) for
Nonredundant Members
D) Design of Welded Connections
Correct answer: C
CERTIFICATION EXAM OFFERED BY AMERICAN
WELDING SOCIETY (AWS) | Q&A WITH
RATIONALES
1. Which AWS document is the primary code for
welding of steel bridges?
A) AWS D1.1
B) AWS D1.2
C) AWS D1.5
D) AWS D1.8
Correct answer: C
Rationale: AWS D1.5 (AASHTO/AWS Bridge Welding
Code) is the primary code for welding of steel
bridges and is issued jointly by AWS and AASHTO.
2. What is the minimum base metal thickness for
which AWS D1.5 applies?
A) 1/16 inch
B) 1/8 inch
C) 3 mm (approx. 1/8 inch)
,D) 3 mm (approx. 1/8 inch) and thicker
Correct answer: D
Rationale: AWS D1.5 applies to the welding of base
metals 3 mm and thicker, which is approximately 1/8
inch.
3. Which base metal specification is primarily
required for bridge steel under AWS D1.5?
A) ASTM A36
B) ASTM A572 Grade 50
C) ASTM A709 / AASHTO M 270
D) ASTM A992
Correct answer: C
Rationale: AWS D1.5 requires the base material to
be AASHTO M 270 / ASTM A709, which is the
standard specification for structural steel for
bridges.
4. Which of the following welding processes is
prequalified under AWS D1.5 without qualification
testing?
A) Gas Metal Arc Welding (GMAW)
,B) Flux Cored Arc Welding (FCAW)
C) Submerged Arc Welding (SAW)
D) Shielded Metal Arc Welding (SMAW)
Correct answer: D
Rationale: In D1.5, only SMAW WPSs are
prequalified, as long as they are in accordance with
other sections of the code. FCAW and SAW WPSs
are not prequalified and have to be tested. D1.5
does not provide for prequalified welding except
with low hydrogen SMAW electrodes.
5. Which welding processes are permitted for
welding ASTM A709 Grade 50CR under AWS D1.5?
A) Only SMAW
B) Only FCAW
C) SMAW, FCAW, GMAW, and SAW (except ESW and
EGW)
D) Only GMAW and SAW
Correct answer: C
Rationale: The welding processes listed in
AASHTO/AWS D1.5 Clause 1.3.1, with the exception
, of ESW and EGW, are permitted for welding ASTM
A709 Grade 50CR.
6. In AWS D1.5, the term "CJP" stands for:
A) Complete Joint Penetration
B) Circular Joint Profile
C) Continuous Joint Procedure
D) Cold Joint Process
Correct answer: A
Rationale: CJP (Complete Joint Penetration) is a
groove weld where the weld metal extends through
the full thickness of the joint, often required for
primary structural connections in bridges.
7. Section 12 of AWS D1.5 is titled:
A) Welding Procedure Qualification
B) Inspection and Acceptance Criteria
C) AASHTO/AWS Fracture Control Plan (FCP) for
Nonredundant Members
D) Design of Welded Connections
Correct answer: C
