The working of a synchronous motor is similar to
A. gear train arrangement
B. transmission of mechancial power by shaft
C. distribution transformer
D. turbine
Answer: Option B
A. gear train arrangement
B. transmission of mechancial power by shaft
C. distribution transformer
D. turbine
Answer: Option B
The maximum power developed in a synchronous motor occurs at a coupling angle of
A. 30°
B. 60°
C. 90°
D. 180°
A. remains same as the original value
B. decreases to half the original value
C. tends to becomes zero
D. increases to two times the original value
The speed of a synchronous motor
A. increases as the load increases
B. decreases as the load decreases
C. always remains constant
D. none of the above
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
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