Electrical Machines Which of the following statements is/are correct statements? EMF per turn in HV winding is less than EMF per turn in LV winding All of these EMF per turn in both the windings are equal EMF per turn in HV winding is more than EMF per turn in LV winding EMF per turn in HV winding is less than EMF per turn in LV winding All of these EMF per turn in both the windings are equal EMF per turn in HV winding is more than EMF per turn in LV winding ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a transformer, the frequency of a voltage at the secondary is greater than the primary. less than primary. equal to primary. any of the above. greater than the primary. less than primary. equal to primary. any of the above. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 3 - Φ induction motor draws an current of 50 A from mains when starts by direct switching. If an auto transformer with 60 % tapping is used for starting the current drawn from the mains will be 18. 80. 50. 36. 18. 80. 50. 36. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Voltage regulation can be determined by which of the following? ZPF method. All of these MMf method. Synchronous impedance method. ZPF method. All of these MMf method. Synchronous impedance method. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The application that need frequent starting and stopping is paper mills. blowers. jaw crushers. lifts and hoists. paper mills. blowers. jaw crushers. lifts and hoists. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines An ideal synchronous motor has no starting torque because relative velocity between stator and rotor mmf’s is not zero. rotor winding is highly reactive. relative velocity between the stator and rotor mmf’s is zero. rotor is made up of salient poles. relative velocity between stator and rotor mmf’s is not zero. rotor winding is highly reactive. relative velocity between the stator and rotor mmf’s is zero. rotor is made up of salient poles. ANSWER DOWNLOAD EXAMIANS APP
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