Visual Inspection works by carefully examining the surface and appearance of a material or component using the naked eye or visual aids. The inspector looks for any visible indications of surface defects, irregularities, or other visible signs of damage or degradation. The inspector may use magnifying lenses, borescopes, or videoscopes to access hard-to-reach areas or to inspect materials with fine details. The inspector evaluates the material or component based on predetermined acceptance criteria or industry standards, and any visual abnormalities or defects are documented and reported. Visual Inspection is a subjective method that relies on the inspector’s visual acuity and experience, and it is often used as a first-step screening method before more advanced NDT techniques are employed.