What must appear on the radiograph to show the penetrameter and related features?

• A. Outline of the weld and identification marks only
• B. Penetrameter outline and identification marks only
• C. Outline of the penetrameter, essential hole, wire dimension, penetrameter ID number, radiograph identification and location marks, and shim outline (if applicable)
• D. Essential hole and wire dimension only

Answer: (C)

The main idea here is that a radiograph must carry every indicator that proves its quality, traceability, and the specific test conditions used. The penetrameter isn’t just a decorative mark; its features provide a verifiable reference for image quality and technique.

Including the outline of the penetrameter shows exactly where the quality indicators sit on the film, so you can judge whether the radiograph has the correct coverage and placement. The essential hole demonstrates the radiographic sensitivity—the film must clearly capture that hole to prove the exposure was sufficient to reveal flaws. The wire dimension adds a calibration reference for magnification and scale, helping interpret the size of any detected flaws. The penetrameter ID number identifies the type and settings of the penetrameter used, ensuring the right standard is being applied. Radiograph identification and location marks tie the image to the specific part, weld, and orientation, which is essential for traceability and record-keeping. If a shim was used to adjust thickness or exposure, the shim outline should be visible too, so the viewer knows how the shot was configured.

Any option that omits one of these elements would leave gaps in the image’s validity and traceability, so the full set is required. That’s why the comprehensive option is the correct choice.