March 22, 2022

Light

Light and vision are key factors in the success of visual testing. Detecting discontinuities depends on how well a technician can see them, which is influenced by the quantity and direction of light. By the end of this course, you will be able to • Describe the physics of light • Understand the difference between artificial and natural light sources • Recognize the effect of different amounts of light and light direction on visual testing • Define key terms related to light and vision • Know how to measure illumination • Understand reflected and refracted light • Learn about different types of lenses • Describe how the human eye processes light
March 22, 2022

Standard Inspection Techniques

An NDE technician may conduct visual testing directly or indirectly. While direct visual testing gives the technician an uninterrupted line of sight to the test object, indirect visual testing requires the use of visual aids to achieve a line of sight to the test object. By the end of this course, you will be able to • List the basic techniques used in visual testing • Understand the differences between direct and indirect visual testing • Understand the difference between local direct visual testing and general visual testing
March 22, 2022

Visual Testing Equipment

An NDE technician may use several different types of equipment and optical aids to perform visual testing. In this course, you’ll discover how a borescope, fiberscope, and videoscope work. You’ll also learn the roles cameras and resolution charts play in visual testing. By the end of this course, you will be able to • Identify the parts of a borescope • Understand the differences between a borescope, fiberscope, and videoscope • Understand the role a camera plays in indirect visual testing • Identify the parts of an indirect visual test system
March 22, 2022

Hierarchy of Product Standards

In this course, you’ll find out about the hierarchy of standards, which dictates the general requirements a test product must meet. You’ll also learn about other standards that may be required and what to do when the standards conflict. By the end of this course, you will be able to • Understand the hierarchy of standards • List the requirements of the design standard • Know what to do in case of a conflict between standards • List what procedure documents need to include
March 22, 2022

Sample Examination #4

Understanding which parameters are chosen for a magnetic particle examination using a portable power supply and accessories is important information for a technician. By the end of this course, you will be able to • Understand which accessories to use to form indications that may lie in any direction • Understand which type of particles are chosen for the examination • Understand which type of current is chosen • Understand how to calculate the required amperage and number of turns for a cable wrap • Understand how to calculate the amperage for a contact shot
March 22, 2022

Visual Testing of Castings

Standards play an important role in visual testing. Depending on the standard required, the NDE technician can compare the test object to photographs, actual replicas of surface irregularities, and written criteria. By the end of this course, you will be able to • Understand how photographs and replicas of surface irregularities are used in visual testing • Know the differences between comparators for the same type of surface irregularity
March 22, 2022

Magnetic Particle Examination Standards

Standards provide common recommendations and requirements for conducting magnetic particle examinations. Understanding the contents of a standard is important to an NDE technician. By the end of this course, you will be able to • Understand the contents of ASTM E1444 • List other standards often used in magnetic particle examinations • Understand the difference between a standard guide and a standard practice • Understand the meaning of "Shall,” "Should,” "May,” and "Will" as they are used in standards and specifications
March 22, 2022

Visual Testing of Rolled Products

In this course, you’ll learn the difference between an imperfection and a defect. You’ll also discover discontinuities common in rolling and drawing. By the end of this course, you will be able to • Understand the difference between an imperfection and a defect • Recognize typical discontinuities of rolled products • Know how to measure a discontinuity’s depth • Identify common discontinuity arrangements • Understand the process for repairing affected areas
March 22, 2022

What is Nondestructive Examination?

The field of nondestructive examination touches many of the products that you use every day. In this course, you will begin to learn about this broad field and where it is used. By the end of this course, you will be able to • Define nondestructive examination • Describe the benefits of nondestructive examination • List industries that use nondestructive examination • List organizations that regulate the safety and reliability of products and services • Describe career opportunities in the field of nondestructive examination