NDT - NDE FAQ: Answering your questions about non destructive testing and evaluation

A technician using a sensor to evaluate a pipe.

If you have good problem-solving skills, an interest in working with technology and an eye for detail, then non destructive testing (NDT) and non destructive evaluation (NDE) could be a rewarding career path for you.

We’ve created this list of frequently asked questions to help you get on the right track to begin your career in NDT and NDE.

What is NDT?

NDT (non destructive testing) describes the methods used to assess various materials, structures and systems without altering, damaging or destroying them over the course of the testing process.

What is the difference between NDT and NDE?

While the terms NDE and NDT are often used interchangeably, there are differences between the two.

Non destructive testing (NDT) refers to the techniques that are used to evaluate materials, structures and systems without causing damage.

Non destructive examination (NDE) refers to both the techniques used in the testing and the evaluation of the results gained from the testing.

Where is NDT used?

NDT is used across many sectors such as the automotive, aerospace, oil and gas, and nuclear industry.

Here are some ways that NDT and NDE may be used in multiple industries:

  • Checking for cracks, corrosions and other defects on a plane’s wings
  • Inspecting a water reactor in a nuclear power plant
  • Evaluating the welds in a vehicle’s frame
  • Assessing oil pipelines for irregularities, damages and blockages

What are some NDT techniques?

NDT specialists perform several types of NDT in their evaluations. Examples of these testing techniques include:

  • Radiography NDT
  • Ultrasonic NDT
  • Magnetic particle NDT
  • Eddy current NDT
  • Liquid penetrant NDT
  • Visual NDT

The type of NDT technique used will depend on the situation (industry, type of material being tested, reason for testing, etc.). It is also common for multiple NDT techniques to be carried out while assessing a singular material, structure or system.

Specific industries use certain testing methods more than others. For example, the automotive industry frequently uses magnetic particle testing while the aerospace industry often utilizes eddy current testing.

Why is NDT done?

NDT and NDE is done for several reasons related to safety, quality assurance and maintenance.

For example, a company in charge of a nuclear power plant may request that NDT and NDE be completed on its water reactor to:

  • Locate flaws that could pose a safety hazard
  • Ensure that the reactor can run at optimum efficiency
  • Get an idea of the overall condition of the reactor to see if repairs need to be made

The reasons why non-destructive testing is done as opposed to destructive testing can be just as varied. This can include reasons such as the potential hazards of doing destructive testing on a material or piece of equipment or not wanting to disrupt the flow of production.

What are the potential earnings for an NDT specialist?

The potential earnings for an NDT specialist can vary depending on experience level, industry and specialization.

Earnings for an NDT specialist typically range from $52,000 to $88,000 annually.

Those with higher levels of certification, or certifications in specific techniques, can expect to earn a higher salary. Additionally, NDT specialists who mainly work in sectors such as aerospace or oil and gas will often have higher salaries than those who work in sectors like automotive or manufacturing.

What are the challenges of being an NDT specialist?

While being an NDT specialist can be a rewarding and lucrative career, there are a few challenges that come with the job.

One of the main challenges is the amount and type of certifications that an NDT specialist is required to have. On top of completing their standard certifications, NDT specialists may need to complete more certifications if they want to focus on working in certain sectors.

Another challenge of being an NDT specialist is that it is common to have an inconsistent work schedule. Some days can be quite busy, with NDT specialists visiting multiple job sites. Other days may see an NDT specialist only completing one type of test at a singular job site. During busy periods of the year, an NDT specialist may have to work overtime or on the weekends.

What education do you need to become an NDT specialist?

Prospective NDT specialists will first need to complete a training course delivered by an organization recognized by the Natural Resources Canada (NRCan) Non-Destructive Testing Certification Body (NDTCB). This training course will prepare students for completing the Materials and Processes exam.

When prospective NDT specialists pass the Materials and Processes exam, they will be able to begin earning their Level 1, 2 and 3 NDT certifications. Progression through the levels is measured by a mixture of in-class and on-the-job training hours.

Should I take an NDT diploma program?

Depending on your situation, completing an NDT - NDE diploma program may be a good choice for you.

By completing an NDT - NDE program, such as Mohawk College’s Quality Engineering Technician - Non Destructive Evaluation (NDE) Diploma program, you will learn the foundational skills necessary for a career in NDT and NDE and the knowledge needed to pass your examinations. Your professors will also be able to connect you with potential future employers so you can kickstart your career once you earn your certifications.

If you have previous experience working in a field such as:

  • Engineering technology,
  • Aviation,
  • Mechanics,

you may want to consider completing a shorter training course with a registered training organization to prepare for your examinations.

Students who have completed Mohawk College’s Quality Engineering Technician - Non Destructive Evaluation (NDE) Diploma program also have the option of continuing their education through other Mohawk College programs, such as the Mechanical Engineering Technology Advanced Diploma program. 

Getting your start in NDT

If you’re interested in beginning your career in non-destructive testing and evaluation, visit the Quality Engineering Technician - Non Destructive Evaluation (NDE) - 439 program page to learn more.

Posted 12/09/2024

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