What is true about welding performed on boilers?

Welding performed on boilers is a critical aspect of their maintenance and repair, necessitating strict adherence to established standards to ensure safety and reliability. The requirement that all welding must meet the ASME (American Society of Mechanical Engineers) code is crucial, as this code outlines the necessary technical and safety standards that must be followed for boilers and pressure vessels. Compliance with these standards helps prevent failures that could lead to catastrophic incidents.

The stipulation that welding must be approved by an authorized inspector prior to repairs being made emphasizes the importance of oversight in the welding process. An authorized inspector is trained to verify that the welding procedures and the qualifications of the personnel performing the welding conform to the ASME code and other applicable regulations. This pre-approval process serves as a safeguard to ensure that the welding performed meets the necessary quality and safety standards before the boiler is put back into service.

In contrast, the other options either misrepresent the requirements or do not capture the full scope of the necessary procedures and inspections that welding on a boiler entails. For instance, the notion that only certain types of welding are allowed for repairs does not address the comprehensive oversight required for any welding work. Additionally, suggesting that welding does not require inspection below a certain size undermines safety considerations, as all