AWS Certified Welder Bridge Welding
D1 5 Practice Exam 100 Questions And
Correct Answers (Verified Answers)
Plus Rationales 2026 Q&A Instant
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1. Which AWS D1.5 clause governs fabrication details for bridge welding?
A. Clause 4
B. Clause 5
C. Clause 6
D. Clause 7
Rationale: Clause 5 of AWS D1.5 covers fabrication requirements, including
joint preparation, fit-up, and welding details.
2. What is the minimum preheat temperature for ASTM A709 Grade 50 steel
with thickness less than 3/4 inch when using a low-hydrogen process?
A. 32°F
B. 50°F
C. 100°F
D. 150°F
Rationale: AWS D1.5 Table 5.7 specifies minimum preheat of 50°F for A709
Grade 50 steel under 3/4 inch with low-hydrogen processes.
3. Which welding process is NOT prequalified under AWS D1.5?
A. SMAW
B. SAW
C. GTAW
D. FCAW-G
Rationale: GTAW is not listed as a prequalified process in AWS D1.5 Clause 5
for bridge fabrication.
,4. What is the maximum allowable undercut for a butt weld in primary bridge
members?
A. 1/64 inch
B. 1/32 inch
C. 1/16 inch
D. 3/32 inch
Rationale: AWS D1.5 Table 6.1 limits undercut to 1/32 inch for primary
members, with specific depth and length restrictions.
5. Which electrode classification is commonly used for SMAW of bridge
steels?
A. E6010
B. E6013
C. E7018
D. E7024
Rationale: E7018 is a low-hydrogen electrode commonly specified for bridge
welding per AWS D1.5.
6. What is the minimum length of a weld access hole for a beam-to-column
connection?
A. 1 inch
B. 1-1/2 inches
C. 2 inches
D. 3 inches
Rationale: AWS D1.5 Clause 5 specifies minimum weld access hole
dimensions, typically 1-1/2 inches.
7. What is the required qualification for a welder performing bridge welds?
A. Visual inspection only
B. Welder performance qualification test per Clause 6
C. Employer certification only
D. No qualification required
Rationale: Clause 6 of AWS D1.5 requires welder performance qualification
testing.
8. What is the maximum interpass temperature for ASTM A709 Grade 50W
steel?
, A. 300°F
B. 400°F
C. 450°F
D. 500°F
Rationale: AWS D1.5 limits interpass temperature to 450°F for weathering
steel to avoid property degradation.
9. Which nondestructive testing method is required for complete joint
penetration groove welds in tension?
A. Visual only
B. Radiographic or ultrasonic testing
C. Magnetic particle only
D. Dye penetrant only
Rationale: AWS D1.5 Clause 6 requires RT or UT for CJP groove welds in
tension.
10. What is the minimum bend test specimen width for welder qualification?
A. 1 inch
B. 1-1/2 inches
C. 2 inches
D. 3 inches
Rationale: AWS D1.5 Clause 6 specifies 1-1/2 inch wide bend specimens for
welder qualification.
11. What is the root opening tolerance for a prequalified groove weld?
A. ±0
B. +1/16, -0 inch
C. ±1/8 inch
D. ±3/16 inch
Rationale: AWS D1.5 prequalified joint details allow +1/16, -0 inch root
opening tolerance.
12. Which position qualifies a welder for all positions?
A. 1G
B. 2G
C. 3G and 4G
D. 5G
D1 5 Practice Exam 100 Questions And
Correct Answers (Verified Answers)
Plus Rationales 2026 Q&A Instant
Download Pdf
1. Which AWS D1.5 clause governs fabrication details for bridge welding?
A. Clause 4
B. Clause 5
C. Clause 6
D. Clause 7
Rationale: Clause 5 of AWS D1.5 covers fabrication requirements, including
joint preparation, fit-up, and welding details.
2. What is the minimum preheat temperature for ASTM A709 Grade 50 steel
with thickness less than 3/4 inch when using a low-hydrogen process?
A. 32°F
B. 50°F
C. 100°F
D. 150°F
Rationale: AWS D1.5 Table 5.7 specifies minimum preheat of 50°F for A709
Grade 50 steel under 3/4 inch with low-hydrogen processes.
3. Which welding process is NOT prequalified under AWS D1.5?
A. SMAW
B. SAW
C. GTAW
D. FCAW-G
Rationale: GTAW is not listed as a prequalified process in AWS D1.5 Clause 5
for bridge fabrication.
,4. What is the maximum allowable undercut for a butt weld in primary bridge
members?
A. 1/64 inch
B. 1/32 inch
C. 1/16 inch
D. 3/32 inch
Rationale: AWS D1.5 Table 6.1 limits undercut to 1/32 inch for primary
members, with specific depth and length restrictions.
5. Which electrode classification is commonly used for SMAW of bridge
steels?
A. E6010
B. E6013
C. E7018
D. E7024
Rationale: E7018 is a low-hydrogen electrode commonly specified for bridge
welding per AWS D1.5.
6. What is the minimum length of a weld access hole for a beam-to-column
connection?
A. 1 inch
B. 1-1/2 inches
C. 2 inches
D. 3 inches
Rationale: AWS D1.5 Clause 5 specifies minimum weld access hole
dimensions, typically 1-1/2 inches.
7. What is the required qualification for a welder performing bridge welds?
A. Visual inspection only
B. Welder performance qualification test per Clause 6
C. Employer certification only
D. No qualification required
Rationale: Clause 6 of AWS D1.5 requires welder performance qualification
testing.
8. What is the maximum interpass temperature for ASTM A709 Grade 50W
steel?
, A. 300°F
B. 400°F
C. 450°F
D. 500°F
Rationale: AWS D1.5 limits interpass temperature to 450°F for weathering
steel to avoid property degradation.
9. Which nondestructive testing method is required for complete joint
penetration groove welds in tension?
A. Visual only
B. Radiographic or ultrasonic testing
C. Magnetic particle only
D. Dye penetrant only
Rationale: AWS D1.5 Clause 6 requires RT or UT for CJP groove welds in
tension.
10. What is the minimum bend test specimen width for welder qualification?
A. 1 inch
B. 1-1/2 inches
C. 2 inches
D. 3 inches
Rationale: AWS D1.5 Clause 6 specifies 1-1/2 inch wide bend specimens for
welder qualification.
11. What is the root opening tolerance for a prequalified groove weld?
A. ±0
B. +1/16, -0 inch
C. ±1/8 inch
D. ±3/16 inch
Rationale: AWS D1.5 prequalified joint details allow +1/16, -0 inch root
opening tolerance.
12. Which position qualifies a welder for all positions?
A. 1G
B. 2G
C. 3G and 4G
D. 5G
