QC Welding Inspector Interview Questions and Answers

WPS (Welding Procedure Specification) and PQR (Procedure Qualification Record) are documents that provide detailed instructions for welding processes.

• WPS outlines the welding process, materials, and techniques to be used for a specific welding job

• PQR documents the results of a test weld and provides proof that the welding process is capable of producing a sound weld

• Both documents are essential for ensuring the quality and consistency of welded products

• WPS and PQR are required...read more

Welder rejection rate is calculated by dividing the number of rejected welds by the total number of welds and multiplying by 100.

• Count the number of rejected welds

• Count the total number of welds

• Divide the number of rejected welds by the total number of welds

• Multiply the result by 100 to get the percentage of rejected welds

Stages of welding inspection include pre-welding inspection, during welding inspection, and post-welding inspection.

• Pre-welding inspection involves checking the materials, equipment, and environment before welding begins.

• During welding inspection involves monitoring the welding process, including the welder's technique and the quality of the weld.

• Post-welding inspection involves checking the finished weld for defects and ensuring it meets the required standards.

• Inspection may...read more

CS electrodes are used for welding carbon steel materials according to specific codes.

• CS electrodes are classified based on the American Welding Society (AWS) code, such as E6010, E7018, etc.

• CS electrodes are used for welding carbon steel materials in various industries like construction, manufacturing, and infrastructure.

• CS electrodes must be selected based on the specific requirements of the welding project, including material thickness, joint design, and welding position.