All of the following are components of a circuit breaker EXCEPT:
A) low-expansion metal
B) contacts
C) a bimetal arm
D) a ball joint

Question

Quizplus · Accepted Answer

A circuit breaker typically includes low-expansion metal, contacts, and a bimetal arm as part of its mechanism for interrupting electrical flow. A ball joint, however, is not a standard component of a circuit breaker; it is more commonly associated with mechanical systems requiring articulation, such as steering systems in vehicles.

All of the Following Are Components of a Circuit Breaker