Electrical Machines At the instant of starting, the per unit slip of 3 - Φ induction motor is 1.0. 0.1. 0.05. 0.5. 1.0. 0.1. 0.05. 0.5. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If an induction machine is run at above the synchronous speed it acts as an induction generator None of these an induction motor a synchronous motor an induction generator None of these an induction motor a synchronous motor ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When the supply terminal of a DC shunt motor are interchanged The direction of rotation will reverse. The motor will run much faster in the same direction. The motor will stop. The motor will run at its normal speed in the same direction as before. The direction of rotation will reverse. The motor will run much faster in the same direction. The motor will stop. The motor will run at its normal speed in the same direction as before. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The frequency of voltage generated by an alternator having 8 poles and rotating at 250 rpm is 16.67 Hz. 60 Hz. 25 Hz. 50 Hz. 16.67 Hz. 60 Hz. 25 Hz. 50 Hz. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a transformer which of the following losses are zero? All of these Iron loss Rotational loss Copper loss All of these Iron loss Rotational loss Copper loss ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If starting current of a 3 - Φ induction motor is 5 times the rated current, while rated slip is 4 %, then ratio of starting torque to full load torque is 0.8. 1. 0.4. 0.6. 0.8. 1. 0.4. 0.6. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS