Which of the following roles is responsible for ensuring the WPS is adhered to during welding?

The inspector plays a critical role in ensuring that the Welding Procedure Specification (WPS) is adhered to during the welding process. This responsibility includes monitoring the welding operations to verify that they comply with the established WPS, which outlines the essential variables and procedures that must be followed to ensure the quality and integrity of the welds.

Inspectors are trained to recognize deviations from the WPS and are equipped to assess the welder's techniques, the equipment being used, and the environmental conditions under which the welding is taking place. Their purpose is to ensure that the welding meets the required standards and specifications set forth in the WPS, thereby safeguarding the overall quality and safety of the welding operations.

In contrast, while the engineer may be involved in developing the WPS, their role is more focused on the design and specifications rather than direct oversight during the welding process. The welder is responsible for executing the welding according to the WPS but may not have the authority or training to assess compliance independently. The quality control manager may oversee overall quality assurance processes, but the direct responsibility for adherence to the WPS during the welding activity primarily lies with the inspector.