Welding and NDT Engineer Interview Questions and Answers

To make a Welding Procedure Specification (WPS) with reference to codes, one must follow the guidelines provided by the relevant welding codes and standards.

• Understand the requirements of the specific welding code being used (e.g. AWS D1.1, ASME Section IX)

• Identify the essential variables for the welding process (e.g. material type, thickness, welding position)

• Select the appropriate welding process, filler metal, preheat and interpass temperature based on the code requirement...read more

Acceptance criteria of radiography refers to the standards and requirements that must be met for a radiographic image to be considered acceptable.

• Radiographic images should have proper density and contrast for clear visualization of defects.

• The image should show all required areas of the weld with no uninterpretable areas.

• The image should be free from artifacts that could obscure or mimic defects.

• The image should meet specified codes and standards such as ASME, AWS, or API.

• Ac...read more

WPS is a document that provides guidelines for welding processes, while PQR is a record of the actual test results from welding procedure qualification tests.

• WPS stands for Welding Procedure Specification, it provides detailed instructions on how to perform a specific welding process.

• PQR stands for Procedure Qualification Record, it documents the actual test results from welding procedure qualification tests.

• WPS is used as a reference for welders to ensure consistency in weld...read more