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VISUAL TESTING (VT)

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NDT-Tank-Inspection

VT involves the visual observation of the surface of a test object to evaluate the presence of surface discontinuities such as corrosion, misalignment of parts, physical damage and cracks.

Visual testing can be done by looking at the test piece directly or by using optical instruments such as magnifying glasses, mirrors, borescopes and computer assisted viewing systems.

VT can be applied in inspection of castings, forgings, machined components and welds.