Electrical Machines If the applied voltage of a DC motor is 230 V, then back emf, for maximum power developed is 230 V. 460 V. 200 V. 115 V. 230 V. 460 V. 200 V. 115 V. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The voltmeter connected across a generator reads voltage same at no load and at full load (rated). The generator is of the type series generator. short - shunt generator. level compound. shunt generator. series generator. short - shunt generator. level compound. shunt generator. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 3 - Φ, 4 pole IM is supplied from a 50 Hz source. Calculate rotor frequency when rotor runs 600 rpm? Can be determined. 35 Hz. 30 Hz. 20 Hz. Can be determined. 35 Hz. 30 Hz. 20 Hz. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines High starting torque and low starting current is the advantage of stepper motor. hysteresis motor. slip ring induction motor. squirrel cage induction motor. stepper motor. hysteresis motor. slip ring induction motor. squirrel cage induction motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The rotor electromotive force of the IM is observed to make 100 complete alterations per minute, calculated slip None of these 3 %. 3.33 %. 0 .001 %. None of these 3 %. 3.33 %. 0 .001 %. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines An induction motor having 8 poles runs at 727.5 rpm. If the supply frequency is 50Hz, the emf in the rotor will have a frequency of 51.5Hz 1.5Hz 2.5Hz 48.5Hz 51.5Hz 1.5Hz 2.5Hz 48.5Hz ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS