Synchronous Motors MCQ Questions & Answers | Electrical Engineering

A. supply voltage fluctuates

B. load in motor varies

C. excitation winding gets disconnected

D. supply voltage frequency changes

A. D.C. shunt motor

B. D.C. series motor

C. A.C. induction motor

D. A.C. synchronous motor

A. augments it directly

B. directly opposes it

C. cross-magnetises it

D. none of the above

A. stator frame

B. rotor shaft

C. pole faces

D. none of the above

A. prevent hunting and provide the starting torque

B. reduce the eddy currents

C. provide starting torque only

D. reduce noise level