Electrical Machines The armature voltage control is considered suitable for a DC motor driven at constant speed. current. torque. power. speed. current. torque. power. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 4 pole DC shunt generator having a wave winding supplies 50 lamps, each of 60 W at 120 V. The armature and field resistance are 0.2 Ω and 60 Ω respectively. The current in each armature conductor is 23 A. 27 A. 13.5 A. 11.5 A. 23 A. 27 A. 13.5 A. 11.5 A. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 8 pole, 50 Hz single phase induction motor is running at 690 rpm. Its slip with respect to forward field is 0.08 -0.08 -1.92 1.92 0.08 -0.08 -1.92 1.92 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The magnetic field which initially induces emf in the armature in a self excited DC generator is because of None of these permanent magnets. armature reaction. residual magnetism. None of these permanent magnets. armature reaction. residual magnetism. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of following winding is connected in series with armature winding of DC machine? Compensating winding. Auxiliary winding. Both Compensating and Commutating pole winding. Commutating pole winding. Compensating winding. Auxiliary winding. Both Compensating and Commutating pole winding. Commutating pole winding. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following motors has low ratings only? Capacitor run Resistance split phase Shaded pole Capacitor start Capacitor run Resistance split phase Shaded pole Capacitor start ANSWER DOWNLOAD EXAMIANS APP
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