Two technicians are describing the crankshaft induction hardening process. Technician A says that to induction harden a crankshaft, the journal is wrapped in a coil of wire using high amperage with direct current passing through it. Technician B says that the journal surface will have current induced into it by mutual induction, much like the secondary winding of an ignition coil. Who is right?
A)A only"
B)B only"
C)Both A and B
D)Neither A nor B"

Question

Quizplus · Accepted Answer

Technician B is correct. Induction hardening involves inducing current into the crankshaft journal surface through mutual induction, similar to how an ignition coil works. Technician A is incorrect because induction hardening typically uses alternating current, not direct current.

Two Technicians Are Describing the Crankshaft Induction Hardening Process