AWS AWS Welding Codes & Standards 4 — Questions and Answers
Question 1: Which AWS standard governs structural welding of steel and is most widely referenced in building construction?
- AWS D1.1 (Correct answer)
- AWS D1.2
- AWS D1.6
- AWS D9.1
Correct answer: AWS D1.1
AWS D1.1 Structural Welding Code—Steel is the primary standard for welding structural steel in buildings and bridges.
Question 2: Under AWS D1.1, what is the minimum preheat temperature required for A36 steel with a thickness greater than 1-1/2 inches when using SMAW?
- 150°F (65°C) (Correct answer)
- 225°F (107°C)
- 50°F (10°C)
- 300°F (149°C)
Correct answer: 150°F (65°C)
AWS D1.1 Table 4.5 requires a minimum preheat of 150°F for A36 steel thicker than 1-1/2 inches.
Question 3: AWS B2.1 is primarily concerned with which aspect of the welding industry?
- Specification for Welding Procedure and Performance Qualification (Correct answer)
- Structural Welding of Aluminum
- Filler Metal Procurement Guidelines
- Safety in Welding and Cutting
Correct answer: Specification for Welding Procedure and Performance Qualification
AWS B2.1 covers the specification for welding procedure and performance qualification across multiple processes.
Question 4: Which document published by AWS defines requirements for the qualification of welding inspectors?
- AWS QC1 (Correct answer)
- AWS D1.1
- AWS A3.0
- AWS B4.0
Correct answer: AWS QC1
AWS QC1 establishes the standard for AWS Certified Welding Inspector (CWI) qualification requirements.
Question 5: In AWS D1.1, a Prequalified Welding Procedure Specification (PWPS) must conform to all prequalified requirements so that which step can be omitted?
- Procedure Qualification Testing (PQR testing) (Correct answer)
- Welder performance qualification
- NDT inspection of the completed weld
- PWHT of the base metal
Correct answer: Procedure Qualification Testing (PQR testing)
A prequalified WPS exempts the fabricator from conducting destructive Procedure Qualification Record (PQR) testing.
Question 6: Which AWS standard specifically addresses welding of pipelines and related facilities?
- AWS D10.12 (Correct answer)
- AWS D1.1
- AWS D15.1
- AWS D1.3
Correct answer: AWS D10.12
AWS D10.12 provides guidelines and recommendations for root pass and fill passes in pipe welding.
Question 7: The acronym 'EH' in AWS filler metal classification (e.g., EH14) indicates what electrode characteristic?
- High deposition, high-iron-powder electrode for SAW (Correct answer)
- Extra-hard surfacing overlay
- Enhanced hydrogen-controlled coating
- Extended heat-resistant alloy content
Correct answer: High deposition, high-iron-powder electrode for SAW
In SAW electrode classifications, 'EH' designates a high-manganese, high-deposition wire designed for submerged arc welding.
AWS AWS Welding Codes & Standards 4
Which AWS standard governs structural welding of steel and is most widely referenced in building construction?