Visual Inspection - Levels I/II

Overview of the Visual Inspection Class

The SIWET 24-hour online visual inspection training course will satisfy the classroom requirement in the multi-stage certification process. Our online ASNT visual inspection classes meet the requirements for "Body of Knowledge" and "General Test" recommendations as outlined in SNT-TC-1A. A training certificate will be issued upon satisfactory completion of all training material and exams.


NDT classroom training online by SIWET is a very convenient and economical way to achieve the required training hours.


Be sure to take a look at the other NDT online classes that we have to offer.


Visual testing is the most commonly used nondestructive testing method in the industry. Most test methods require that the inspector looks at the surface of the part being inspected which means that visual inspection is the first step for these 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 enhanced viewing methods. Corrosion, misalignment of parts, physical damage and cracks are just some of the discontinuities that may be detected by visual examinations. Corrosion, misalignment, physical damage, and cracks are just some of the discontinuities that may be identified by visual inspection.

Visual Inspection - Levels I/II Course Curriculum

Lesson 1: Introduction to Visual Inspection
Lesson 2: Physics and Fundamentals of Visual Inspection
Lesson 3: Visual Inspection Techniques
Lesson 4: Basic Visual Inspection Equipment
Lesson 5: Visual Inspection of Welds
Lesson 6: Visual Inspection of Castings and Wrought Products
Lesson 7: Visual Inspection Procedures
Lesson 8: Elements of Vision
Lesson 9: Elements of Lighting
Lesson 10: Optics
Lesson 11: Advanced Visual Inspection Equipment
Lesson 12: Service-Induced Discontinuities
Lesson 13: Evaluation
Lesson 14: Codes, Standards, and Specifications