If steel feeler gauges were used to check the clearance between two magnetic parts, the drag caused by the magnetism would mimic the drag of a proper clearance.

Question

Quizplus · Accepted Answer

The magnetism between the steel feeler gauges and the magnetic parts will create a drag force, which will make it difficult to move the feeler gauges. This drag force will mimic the drag of a proper clearance, making it difficult to determine the actual clearance between the two magnetic parts.

If Steel Feeler Gauges Were Used to Check the Clearance