Electrical Machines What will be the maximum power factor of an induction motor for dispersion coefficient of 0.05? 20. 0.05. 0.905. 1.1. 20. 0.05. 0.905. 1.1. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 4-pole DC generator runs at 1500 rpm. The frequency of current in the armature winding is: 100 Hz. Zero Hz. 25 Hz. 50 Hz. 100 Hz. Zero Hz. 25 Hz. 50 Hz. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For small value armature current Ia the torque developed by a DC series motor is proportional to 1/Ia. Ia. Ia2. √Ia. 1/Ia. Ia. Ia2. √Ia. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following motor is used in grinders? Capacitor start capacitor run IM. Synchronous motor. Split phase IM. Capacitor start IM. Capacitor start capacitor run IM. Synchronous motor. Split phase IM. Capacitor start IM. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 3-φ alternator has negligible stator resistance. A short circuit test is conducted on this alternator. At a particular speed, a field current of If1 is required to drive the rated armature current. If the speed of the alternator is reduced to half, the field current required to maintain rated armature current Would be equal to If1/2. Would be equal to If1. Woud be equal to 2If1. Cannot be predicted due to insufficient data. Would be equal to If1/2. Would be equal to If1. Woud be equal to 2If1. Cannot be predicted due to insufficient data. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In electric locomotives which of the following motor are used ? DC compound motor. DC Shunt motor. Synchronous motor. DC series motor. DC compound motor. DC Shunt motor. Synchronous motor. DC series motor. ANSWER DOWNLOAD EXAMIANS APP
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