Visual Testing (VT)

LEVEL II

DURATION : 5 DAYS (24 Hrs. Classroom training, 2 Exam days)(5 days)


CONTENTS

Visual testing is the most commonly used test method in industry.

Because most test methods require that the operator look at the surface of the part being inspected, visual inspection is inherent in most of the other test methods.

As the name implies, VT involves the visual observation of the surface of a test object to evaluate the presence of surface discontinuities.

VT inspections may be by Direct Viewing, using line-of sight vision, or may be enhanced with the use of optical instruments such as magnifying glasses, mirrors, boroscopes, charge-coupled devices (CCDs) and computer-assisted viewing systems (Remote Viewing).

Corrosion, misalignment of parts, physical damage and cracks are just some of the discontinuities that may be detected by visual examinations.

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