Electrical Machines Ratio of starting torque to full load torque is minimum in Differential compound motor. Series motor. Cumulative compound motor. Shunt motor. Differential compound motor. Series motor. Cumulative compound motor. Shunt motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Lap winding is prefered for which type of machines? high current and low voltage low current and low voltage low current and high voltage high current and high voltage high current and low voltage low current and low voltage low current and high voltage high current and high voltage ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the air gap of IM is increased, ____________ will increase. air gap flux. magnetizing current. power factor. speed. air gap flux. magnetizing current. power factor. speed. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following methods of speed control is not affected through stator side? Change of number of pole. Change of supply voltage. Change of rotor resistance. Change of supply frequency. Change of number of pole. Change of supply voltage. Change of rotor resistance. Change of supply frequency. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A synchorous generator connected to an infinite bus is over excited. Considering only the reactive power from the point view of the system the machine acts as A capacitor. A resistor. None of these. an inductor. A capacitor. A resistor. None of these. an inductor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The direction of rotation of a 3 - Φ induction motor can be reversed by disconnecting any one phase. transposing any two leads from supply. transposing all the three leads from the supply. transposing any two leads from slip rings. disconnecting any one phase. transposing any two leads from supply. transposing all the three leads from the supply. transposing any two leads from slip rings. ANSWER DOWNLOAD EXAMIANS APP
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