Electrical Machines A 4 pole, 3-phase induction motor is running at 4% slip at full load. If the speed of the motor is 720 rpm, the supply frequency is 40 HZ 60 Hz 50 Hz 25 Hz 40 HZ 60 Hz 50 Hz 25 Hz ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines To avoid formation of grooves in the commutator the brushes of same polarity should track each other. None of these brush position has no effect on the commutator grooving. the brushes of opposite polarity should track each other. the brushes of same polarity should track each other. None of these brush position has no effect on the commutator grooving. the brushes of opposite polarity should track each other. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Reluctance and hysteresis motors are the types of which electrical motor? 3 - Φ induction motor. Stepper motor. 1 - Φ synchronous motor. DC motor. 3 - Φ induction motor. Stepper motor. 1 - Φ synchronous motor. DC motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following DC Motor is used in paper machines? DC compound motor. DC Shunt motor. Separately excited DC motor. DC series motor. DC compound motor. DC Shunt motor. Separately excited DC motor. DC series motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC machine, the angle between the stator and rotor fields is 90o. dependent upon the load. 180o. 0o. 90o. dependent upon the load. 180o. 0o. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The armature voltage control is considered suitable for a DC motor driven at constant speed. current. power. torque. speed. current. power. torque. ANSWER DOWNLOAD EXAMIANS APP
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