AWS Welding Codes & Standards Flashcards

AWS D1.5 applies specifically to welding of which type of structure?

Answer: Highway bridges

AWS D1.5 Bridge Welding Code governs the welding of highway bridges in the United States.

What is the primary purpose of a Procedure Qualification Record (PQR) under AWS standards?

Answer: To record the actual variables used during test welds and the test results that qualify a WPS

A PQR documents the essential variables and test results from a qualification weld, supporting the validity of the corresponding WPS.

Under AWS D1.1, which discontinuity type is NEVER permitted regardless of size in a cyclically loaded tension member?

Answer: Cracks

AWS D1.1 has a zero tolerance for cracks in any weld subjected to cyclic tensile loading because they propagate under fatigue.

The AWS A5 series of standards primarily covers which category of welding materials?

Answer: Filler metals and consumables

The AWS A5 series establishes specifications for filler metals including electrodes, rods, and fluxes for all welding processes.

Which essential variable change in a WPS always requires requalification under AWS D1.1?

Answer: A change from one P-number base metal group to a different, non-qualified group

Changing base metal P-number groups beyond those qualified by the PQR is an essential variable that mandates requalification.

Under ANSI Z49.1, which government agency does AWS coordinate with to establish safety requirements for welding and cutting?

Answer: OSHA

ANSI Z49.1 Safety in Welding, Cutting, and Allied Processes aligns with OSHA regulations for worker protection.

When AWS D1.1 refers to a 'complete joint penetration' (CJP) groove weld, what does this mean?

Answer: The weld metal extends through the full thickness of the joint

A CJP weld requires weld metal to fuse and penetrate completely through the full thickness of the joint cross section.