Synchronous Motor Multiple Choice Questions and Answers
36. A rotory converter can also be run as a
A.D.C. shunt motor
B.D.C. series motor
C.D.C. compound motor
D.Induction motor
E.Synchronous motor
✔ View Answer
E.Synchronous motor
✍ Your Comments
37. When 3-phase synchronous generator is supplying a zero power factor lagging load, the armature field affects the main field in the following way
A.Arguments it directly
B.Directly opposes it
C.Cross-magnetises it
D.None of the above
✔ View Answer
✍ Your Comments
38. A pony motor is basically
A.Small induction motor
B.D.C series motor
C.D.C shunt motor
D.Double winding A.C/D.C motor
✔ View Answer
✍ Your Comments
39. In case one phase of a three-phase synchronous motor is short-circuited the motor will
A.Not start
B.Run at 2/3 of synchronous speed
C.Run with excessive vibrations
D.Take less than the rated load
✔ View Answer
✍ Your Comments
40. In which of the following motors the stator and rotor magnetic field rotate at the same speed
A.Universal motor
B.Synchronous motor
C.Induction motor
D.Reluctance motor
✔ View Answer
✍ Your Comments