Crack panels are used to evaluate the sensitivity of the penetrant inspection process.

Crack panels are used to evaluate the sensitivity of the penetrant inspection process.

• A. False
• B. True
• C. Only for training
• D. Not used

Answer: (B)

Crack panels are used to verify how sensitive the penetrant inspection method is. They have artificial cracks of known size and orientation, which lets you check whether flaws of that size will be revealed under the specified conditions (penetrant type, developer, cleaning, lighting). If those known flaws show up consistently, the process is deemed to have the required sensitivity; if they don’t, adjustments to the penetrant system or inspection setup are needed. While crack panels can also support training, their main purpose is to provide a measurable, repeatable check of the method’s capability, not to serve as training material alone.

Crack panels are used to verify how sensitive the penetrant inspection method is. They have artificial cracks of known size and orientation, which lets you check whether flaws of that size will be revealed under the specified conditions (penetrant type, developer, cleaning, lighting). If those known flaws show up consistently, the process is deemed to have the required sensitivity; if they don’t, adjustments to the penetrant system or inspection setup are needed. While crack panels can also support training, their main purpose is to provide a measurable, repeatable check of the method’s capability, not to serve as training material alone.