A generally accepted method for removing excess nonwater-washable penetrant is:

A generally accepted method for removing excess nonwater-washable penetrant is:

• A. Rinsing with water
• B. Washing with solvent
• C. Wiping and cautiously cleaning the test specimen with a cleaner-dampened cloth
• D. Air drying

Answer: (C)

When using a nonwater-washable penetrant, the goal is to remove only the surface excess without disturbing the penetrant that has entered flaws. A cleaner-dampened cloth let you lift and wipe away the surface residue gently and controlledly, leaving penetrant indications intact for inspection. This method avoids washing the entire surface with water (which could wash penetrant out of defects and reduce sensitivity) and avoids leaving excess residues that air drying would not remove. It’s also more precise than a full solvent wash, which could be too aggressive and risk removing penetrant from cracks. So, wiping with a cleaner-dampened cloth provides the proper balance of cleaning without compromising the penetrant indications.

When using a nonwater-washable penetrant, the goal is to remove only the surface excess without disturbing the penetrant that has entered flaws. A cleaner-dampened cloth let you lift and wipe away the surface residue gently and controlledly, leaving penetrant indications intact for inspection. This method avoids washing the entire surface with water (which could wash penetrant out of defects and reduce sensitivity) and avoids leaving excess residues that air drying would not remove. It’s also more precise than a full solvent wash, which could be too aggressive and risk removing penetrant from cracks. So, wiping with a cleaner-dampened cloth provides the proper balance of cleaning without compromising the penetrant indications.