After successful pre-production tests, what is the operator's production welding qualification status?

• A. The operator is automatically qualified to perform production welding.
• B. The operator must pass a separate production exam.
• C. The operator can weld only when supervised.
• D. The operator is qualified to perform production welding after successful pre-production tests.

Answer: (D)

Focusing on the ability to produce welds that meet the specified procedure is the key here. When pre-production tests are completed successfully, the operator has demonstrated they can weld according to the approved welding procedure for the given joint, material, and process. That accomplishment grants qualification to perform production welding for that project and process. There’s no separate production exam needed after a successful pre-production test—the test itself certifies production capability, as long as the welding procedure remains unchanged. In practice, the qualification covers production welding under the stated WPS, with changes to the procedure or materials typically requiring requalification.