Welding Codes and Standards Flashcards

Under AWS D1.1, how long is a welder qualification (WPQ) valid if the welder has not welded with the qualified process for more than 6 months?

Answer: It expires and must be renewed

AWS D1.1 requires that a welder's qualification expires if they have not used the qualified process within any 6-month period.

What is the minimum length of a test weld plate required for qualification under AWS D1.1 for a 3/8-inch groove weld test?

Answer: 12 inches (300 mm)

AWS D1.1 requires a minimum 12-inch long test plate for welder qualification groove weld tests.

According to AWS D1.1, which nondestructive testing method is the primary method for detecting subsurface discontinuities in structural welds?

Answer: Ultrasonic testing (UT)

Ultrasonic testing (UT) is the primary volumetric NDE method used in AWS D1.1 for detecting internal subsurface discontinuities.

In ASME Section IX, what must happen before a welding procedure using a new base metal (not listed in ASME) can be used?

Answer: A PQR must be developed supporting the new material

Unlisted base metals require development and qualification of a PQR to demonstrate acceptable weld properties for that material.

Which AWS standard covers qualification and certification of welding inspectors?

Answer: AWS QC1

AWS QC1 is the Standard for AWS Certification of Welding Inspectors, establishing requirements for CWI certification.

Under ASME Section IX, a welder qualified in the 6G position is qualified to weld in which other positions?

Answer: All positions including 1G, 2G, 3G, 4G, 5G

The 6G position is the most demanding pipe qualification and qualifies the welder for all positions (1G, 2G, 3G, 4G, 5G, and 6G).

What does AWS A3.0 define?

Answer: Standard welding terms and definitions

AWS A3.0 is the Standard Welding Terms and Definitions, providing the official terminology used across all AWS standards.