A capacitor-start single phase induction motor is switched on to supply with its capa-citor replaced by an inductor of equivalent reactance value. It will

start and then stop
start and run slowly
start and run at rated speed
not start at all

The correct answer is D. not start at all.

A capacitor-start single phase induction motor has two windings, a main winding and a starting winding. The starting winding is connected to a capacitor, which creates a rotating magnetic field that helps the motor start. When the capacitor is replaced with an inductor, the rotating magnetic field is not created and the motor will not start.

Option A is incorrect because the motor will not start.

Option B is incorrect because the motor will not start.

Option C is incorrect because the motor will not start.