Synchronous Motor Quiz | Synchronous Motor Short Questions and Answers
Questions
41
In a synchronous motor running with fixed excitation, when the load is increased three times, its torque angle becomes approximately
Answer: Thrice
42
The operating speed of a synchronous motor can be changed to new fixed value by
Answer: Changing frequency
⭐ Make GKSeries Your Preferred Source on Google
Add GKSeries as Preferred Source
44
While running, a synchronous motor is compelled to run at synchronous speed because of
Answer: Magnetic locking between stator and rotor poles
45
In a synchronous motor, damper winding is provided in order to
Answer: Both (a) and (c)
47
The armature current of the synchronous motor has higher values for
Answer: Both (a) and (b)
48
The synchronous motor is not inherently self-starting because
Answer: The force required to accelerate the rotor to the synchronous speed in an instant is absent
49
A synchronous motor can be made self-starting by providing
Answer: None of the above
50
Synchronous motors are generally not self-starting because
Answer: The direction of instantaneous torque reverse after half cycle
