Question

Single phase reluctance motors are extensively used in ________

(a) grinder applications

(b) driving electric clocks and other timing devices

(c) welding applications

(d) lifts/ elevators

I got this question in a job interview.

This question is from Reluctance Motor in section Basic Concepts in Rotating Machines of Electrical Machines

Answer 1

Right option is (b) driving electric clocks and other timing devices

The best I can explain: The single phase reluctance motors operate at constant synchronous speed, in case the supply frequency remains constant, and hence timing devices mostly use these motors.