Visual Inspection (VT)
Visual Inspection is the oldest simplest, fastest, economical and most commonly used test for detecting defect on the surface of the weld, plate, pipe, turbine, heatexchangers and boilers.
Inspection may be carried out direct by the use of the naked eye or can be enhanced by using optical systems such as magnifiers and other visual examination aids or indirect by the use of A variety of equipments are available for visual examination including mirrors, video scopes etc.