Magnetic Particle Inspection Level 1 Practice Exam

Which type of testing can mobile MT equipment perform effectively?

1. Quality assurance testing only

2. Coil or prod MT testing

3. Static stress tests

4. Non-destructive testing solely

The correct answer is: Coil or prod MT testing

Mobile magnetic particle testing (MT) equipment is particularly well-suited for coil or prod testing due to its design and operational flexibility. This type of testing employs either a coil or prod to generate a magnetic field in the test object. The mobile equipment allows inspectors to apply the magnetic field around the area that requires inspection effectively, making it ideal for detecting surface and near-surface discontinuities in a variety of materials, particularly metals. With the use of a coil, a continuous magnetic field can be established around components that may be geometrically complex, while prod testing uses hand-held probes to apply the magnetic field directly to specific areas. This versatility is essential when inspecting components that are already in situ or during maintenance activities in various environments. Although other forms of testing may be conducted with mobile equipment, effective performance is most strongly associated with coil and prod methods, given their ability to target specific areas and reveal defects through the application of a magnetic field followed by magnetic particle application.