Visual Testing – Online


Inspection may be by the use of the eye alone or can be enhanced using optical systems such as magnifiers and microscopes. A variety of equipment is available to the visual inspector including mirrors and gauges, which can be used for profile assessment, borescopes and endoscopes, which are used on parts with limited access and video and computer enhancement systems.

Visual inspection can be used to determine the shape, size and hue (colour) of components under inspection.

Although a visual test in itself, it also forms an integral part of many other Non-Destructive Testing methods. For example:

  • Magnetic particle or penetrant inspection require visual observations and detected indication
  • Radiographs require visual inspection for the interpretation of results
  • Ultrasonic  inspection requires the visual assessment of the trace on the screen of the instrument

This course has been devised in line with the applicable BINDT syllabus to provide detail of all key subject areas in line with ISO 9712. The course therefore provides a solid foundation of knowledge within radiography to provide you the best chance of success in future PCN visual testing examinations as well as employer based SNT-TC-1A examinations.

You also have automatic access to our Product Technology General Theory course.

Special note: Candidates should ideally hold a PCN Level 2 approval in Visual Testing with at least 2 years’ experience in NDT/Inspection before attempting the course. See also the latest edition of PCN/GEN for the minimum requirements for examinations.

In-class training equivalent – 4 days



Access to the training course is up to 60 days (can be extended on request)

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Course information

Radiography Level 3 is ideal for those who already have a good understanding of the techniques of radiographic inspection and would like instruction to improve their knowledge and increase their experience in preparation for a Level 3 examination

Course notes are able to be downloaded to be viewed on a separate device or printed for future use.

Each assessment will be marked as complete once a 70% pass rate has been achieved, but don’t worry, you can attempt these as many times as you like, even if you get higher than 70%.

The final assessment takes questions from all previous assessments to fully review your learning and refresh your knowledge.

The course is split into modules to break down the learning in to manageable parts.

  • Unit 1 – Radiographic Overview
  • Unit 2 – X and Gamma Radiation
  • Unit 3 – Basic Physics
  • Unit 4 – Absorption and Scattering
  • Unit 5 – Radiographic Equipment
  • Unit 6 – Half Value Thickness
  • Unit 7 – Radiographic Film
  • Unit 8 – Characteristic Curves of Films
  • Unit 9 – Intensifying Screens
  • Unit 10 – Image Formation
  • Unit 11 – Film Processing
  • Unit 12 – Radiographic Quality
  • Unit 13 – Radiographic Techniques
  • Unit 14 – Determination of Exposure
  • Unit 15 – Filters
  • Unit 16 – Glossary of Terms

The Argyll Ruane e-Learning program will work on various hardware platforms, but the following is an example of a minimum-specification that would be expected to deliver a rich, interactive user experience:

  • PC or Mac.
  • Microsoft Windows XP, Windows Vista or Windows 7 or above, Mac OS X 10.5 (Leopard) or above, Modern Linux variant.
  • 32-bit colour graphics.
  • Keyboard and mouse.
  • Recommended minimum browser: Google Chrome 11, Firefox 4, Safari 5, Internet Explorer 8 (IE 10 required for drag and drop of files from outside the browser into the e).

As e-learning is delivered online we would recommend the following bandwidths for internet access:

  • Minimum bandwidth: 256 kbps
  • If using video: 512 kbps