Which of the following tasks is not normally performed by the inspector prior to welding?

The task that is not normally performed by the inspector prior to welding is checking the appearance and size of welds. This activity is typically conducted after the welding process is complete, as the inspector assesses the quality and integrity of the finished welds against specified criteria and codes. Prior to welding, the inspector focuses on ensuring that all necessary preparations are in place for the welding process to commence, such as verifying qualifications, joint design, and relevant procedures.

Checking the welder's qualifications is essential to confirm that the welder has the appropriate certifications and skills. Ensuring proper joint design is critical for the effectiveness of the weld, as it impacts the strength and performance of the joint. Reviewing specifications and welding procedures is necessary to ensure that the welding work will meet industry standards and project requirements. These tasks help prevent issues and ensure compliance before welding begins. Thus, the inspection of weld appearance and size falls under the post-welding activities, making it the correct choice in this context.