Synchronous Motors The ratio of starting torque to running torque in a synchronous motor is Zero Infinity One Two Zero Infinity One Two ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The induced e.m.f. in a synchronous motor working on leading power factor will be equal to the supply voltage more than the supply voltage less than the supply voltage None of these equal to the supply voltage more than the supply voltage less than the supply voltage None of these ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The speed of a synchronous motor can be changed by varying _______ Mechanical load None of the listed here Supply frequency Field excitation Mechanical load None of the listed here Supply frequency Field excitation ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor is cheaper than 3-phase induction motor for _____ Low speed, high output None of the listed here High speed, high output High speed, low output Low speed, high output None of the listed here High speed, high output High speed, low output ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors An under excited synchronous motor behaves as_______ An inductor None of the listed here A resistor A capacitor An inductor None of the listed here A resistor A capacitor ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors If the synchronous motor, properly synchronised to the supply is running on no load and is having negligible loss then the back e.m.f. will be more than the supply voltage the stator current will be very high the stator current will be very small the stator current will be zero the back e.m.f. will be more than the supply voltage the stator current will be very high the stator current will be very small the stator current will be zero ANSWER DOWNLOAD EXAMIANS APP
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