QA QC Welding Inspector Interview Questions and Answers

The size of filler wire chosen for welding root pass depends on the thickness of the base metal and the welding process being used.

• Filler wire size is typically chosen based on the thickness of the base metal to ensure proper penetration and strength of the weld.

• For thicker base metals, a larger filler wire size may be chosen to provide adequate reinforcement.

• The welding process being used, such as TIG or MIG, also influences the choice of filler wire size.

• Proper selection of...read more

Yes, I have reviewed Material test certificates to ensure compliance with specifications.

• Reviewed material test certificates for chemical composition, mechanical properties, and other relevant information

• Ensured that the materials used in welding met the required standards and specifications

• Verified that the material test certificates were authentic and up to date

• Documented the review process and any discrepancies found

• Communicated with suppliers or manufacturers if there wer...read more

An oxygen scavenger is a chemical substance used to remove or reduce oxygen content in a system, such as in boiler feedwater to prevent corrosion.

• Used in boiler feedwater treatment to prevent corrosion

• Helps reduce oxygen content in systems

• Commonly used chemicals include sodium sulfite, hydrazine, and catalyzed sodium bisulfite

I am using materials grade that meet the specified requirements for the project.

• Materials grade are selected based on project specifications and requirements

• Common materials grades for welding include ASTM A36, ASTM A572, and API 5L

• Materials grade are verified through documentation and testing

WPS stands for Welding Procedure Specification and it contains all the details about the welding process.

• WPS is a document that outlines the welding process to be used for a specific job.

• It includes details such as the type of welding process, welding positions, filler metal, preheat and post-weld heat treatment requirements, and more.

• WPS is developed by a qualified welding engineer or welding specialist and is approved by a certified welding inspector.

• It is important to foll...read more