Electrical Machines In alternator, the rotary part is magnetic field poles. core. none of these. armature. magnetic field poles. core. none of these. armature. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When an electric train is moving down a hill, the DC motor will operate as DC series motor. DC shunt motor. DC series generator. DC shunt generator. DC series motor. DC shunt motor. DC series generator. DC shunt generator. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following motor has the highest power factor at full load? Shaded pole Capacitor run Capacitor start Resistance split phase Shaded pole Capacitor run Capacitor start Resistance split phase ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 250 V DC generator in run at rated speed with no excitation. The open circuit voltage will be about 100 V. 250 V. very small, say about 2 or 3 V. zero. about 100 V. 250 V. very small, say about 2 or 3 V. zero. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following methods of speed control is not affected through stator side? Change of supply voltage. Change of supply frequency. Change of rotor resistance. Change of number of pole. Change of supply voltage. Change of supply frequency. Change of rotor resistance. Change of number of pole. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC Shunt Motor if the load current increases keeping the terminal voltage constant, then flux will decrease. remain constant. increase. any of the above. decrease. remain constant. increase. any of the above. ANSWER DOWNLOAD EXAMIANS APP
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