Electrical Machines Hysteresis loss is proportional to f1.5. f2. f. f3. f1.5. f2. f. f3. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines High starting torque and low starting current is the advantage of slip ring induction motor. stepper motor. hysteresis motor. squirrel cage induction motor. slip ring induction motor. stepper motor. hysteresis motor. squirrel cage induction motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The mmf produced by rotor currents of a 3 - Φ induction motor rotates at slip speed with respect to stator mmf. rotates at synchronous speed with respect to rotor. is at standstill with respect to stator mmf. rotates at the speed of rotor in the air gap. rotates at slip speed with respect to stator mmf. rotates at synchronous speed with respect to rotor. is at standstill with respect to stator mmf. rotates at the speed of rotor in the air gap. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of following motor is preferred for belt conveyor? Reluctance motor. Universal motor. Synchronous motors. Slip ring induction motor. Reluctance motor. Universal motor. Synchronous motors. Slip ring induction motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The rotor speed of an induction motor is given by Ns = 120f / p × ( 1 - s ). Ns = 120f /p × ( 1 - r). Nr = 120f / p × (1-s). None of these Ns = 120f / p × ( 1 - s ). Ns = 120f /p × ( 1 - r). Nr = 120f / p × (1-s). None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the armature electric current is increased to double its previous value, and the time of commutation is halved, how will the reactance voltage vary? It will be halved. It will becomes four times. It will be doubled. It will remain the same. It will be halved. It will becomes four times. It will be doubled. It will remain the same. ANSWER DOWNLOAD EXAMIANS APP
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