Science of Nondestructive Testing


Member: $175
Non-member: $235

Access to Course Materials

Course – 30 days
Exam – 10 more days

Course Length

Approximately 6 hours

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Science of Nondestructive Testing
Science of Nondestructive Testing

the principles and performance of the most common nondestructive tests

This course describes welding discontinuities and the science and application of visual testing (VT), penetrant testing (PT), magnetic particle testing (MT), radiographic testing (RT), and ultrasonic testing (UT). Topics include discontinuities and their causes, as well as the role of vision, capillary action, magnetism, radiation, and sound in VT, PT, MT, RT and UT respectively. The Science of Non-Destructive Testing is perfect for both students and welding professionals involved in inspection, supervision, or quality control.


MODULE 1 – Introduction to Nondestructive Testing and Discontinuities

MODULE 2 – Common Discontinuities and Their Causes

MODULE 3 – The Science of Sight

MODULE 4 – How to Perform a Visual Test

MODULE 5 – The Science of Capillary Action

MODULE 6 – How Capillary Action Works in Penetrant Testing

MODULE 7 – The Science of Magnetism

MODULE 8 – How Magnetism Works in Magnetic Particle Testing

MODULE 9 – The Science of Radiation

MODULE 10 – Radiation Safety

MODULE 11 – How Radiation Works in Radiographic Testing

MODULE 12 – The Science of Sound

MODULE 13 – How Sound Works in Ultrasonic Testing


How much do I need to know before taking this course?

No previous knowledge is required. This course presents NDT concepts in clear, easy-to-understand language and easily digestible chunks of information. We start at the beginning, explain every term and topic, and provide practice questions to ensure you understand the material.

Who should take this course?

The Science of Non-Destructive Testing is ideal for both students and welding professionals involved in inspection, supervision, or quality control.

How long do I have to complete this course?

Participants have access to the course content 24 hours a day for a period of 30 days from the date of registration. After this 30-day period, participants will have an additional 10 days to pass the completion exam. The exam can be activated before the end of the 30-day period if the participant has completed all the modules.

Does this course include a completion exam?

Yes. Upon completion of the final course module, participants are prompted to take an exam designed to evaluate their comprehension of the subject matter. The completion exam consists of 50 multiple-choice questions and must be completed within a 90-minute period. Participants who do not attain the 75% passing score may attempt to retake the exam a second time. Participants who attain a score of 75% or more on the completion exam earn an AWS Certificate of Completion and 5 Professional Development Hours (PDHs). The AWS Certificate of Completion can be downloaded and printed directly from the webpage.

Do I need to purchase any other materials?

No. All the materials and resources necessary to complete the course objectives are included.

Do I receive Professional Development Hours (PDHs) for completing this course?

Yes. Participants who attain a score of 75% or above on the Completion Exam will receive an AWS Certificate of Completion and 5 Professional Development Hours (PDHs).

Can I use these Professional Development Hours (PDHs) for recertification?

Yes. Professional Development Hours (PDHs) earned through AWS online courses and virtual conferences can be applied towards recertification provided the PDH’s are earned during the certification period.

Will this course help prepare me for the Certified Welding Inspector Exam?

Yes. The Certified Welding Inspector Fundamentals Exam (Part A) contains questions concerning the topics covered in this course. This course is designed to help prepare participants for this section of the exam.

What platforms and devices can I use to view AWS Learning online courses?

You must be connected to the internet to access AWS Learning online courses. AWS supports the most recent versions of Google Chrome, Firefox, Safari, and Internet Explorer. Courses can be viewed on desktops, laptops, tablets, and mobile phones. Note, however, that a high speed internet connection and large screen offer a better user experience.


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