During a discussion, Technician A says that if you cannot tell by a visual inspection whether a painted engine part is aluminum or ferrous, you should use a magnet. Technician B says that the use of a magnetic would prove nothing as ferrous materials and aluminum are not magnetic. Who is correct?

Question

Quizplus · Accepted Answer

Technician A is correct because ferrous materials are magnetic, and aluminum is not. Using a magnet can help differentiate between the two, as the magnet will stick to ferrous materials but not to aluminum.

During a Discussion, Technician a Says That If You Cannot