Final answer:
The examination method is called magnetic particle testing or mag particle testing. It uses a strong magnetizing current and magnetic powder to detect defects in metals and ferromagnetic materials.
Step-by-step explanation:
The examination method that uses a strong magnetizing current and a finely divided powder to detect defects is called magnetic particle testing or mag particle testing.
Mag particle testing involves magnetizing the material under inspection and then applying iron particles or a magnetic powder to the surface. The magnetic field interactions between the material and the particles reveal any defects or discontinuities in the material, such as cracks or flaws.
This method is commonly used in industries like manufacturing, aerospace, and automotive to detect defects in metals and ferromagnetic materials.