The liquid penetrant test is a non-destructive method ideal for detecting surface defects in non-porous materials. The process includes applying a highly visible liquid, removing the excess, and using a developer to highlight discontinuities. It is essential in construction for inspecting welds, pipelines, and metal structures. #NondestructiveTesting #LiquidPenetrantTesting #WeldInspection #Structures #IndustrialSafety | Architecture & Engineering