Electrical Machines When the excitation of normally operating unloaded, salient pole synchronous motor suddenly gets disconnected, it continues to run as a DC motor. switched reluctance motor. variable reluctance motor. induction motor. DC motor. switched reluctance motor. variable reluctance motor. induction motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Capacitor in split phase induction motor is used to improve the starting torque. reduce the harmonics. improve the power factor. start the motor. improve the starting torque. reduce the harmonics. improve the power factor. start the motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Compensating winding are used to rectify the flux density waveform at interpole region. throughout the air gap. None of these region under main pole. interpole region. throughout the air gap. None of these region under main pole. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A single-winding single-phase motor has high starting torque. starting torque equal to full-load torque. zero starting torque. low starting torque. high starting torque. starting torque equal to full-load torque. zero starting torque. low starting torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a 3 - Φ, 4 pole, 50 Hz IM rotating at full load speed of 1440 rpm, calculate speed of rotor field with respect to rotor structure and stator structure respectively? 60, 1440. 50, 1500. 60, 1500. 1440, 1500. 60, 1440. 50, 1500. 60, 1500. 1440, 1500. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The heat transfer by convection in a transformer least depends on color of the paint. air velocity. surface area. temperature difference. color of the paint. air velocity. surface area. temperature difference. ANSWER DOWNLOAD EXAMIANS APP
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