Electrical Machines A 8 pole, 50 Hz single phase induction motor is running at 690 rpm. Its slip with respect to forward field is -1.92 0.08 -0.08 1.92 -1.92 0.08 -0.08 1.92 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the back emf in DC motor vanishes suddenly the motor will start haunting. run at very high speed. run at very low speed. burn. start haunting. run at very high speed. run at very low speed. burn. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Fifth harmonic component of the induced voltage in three phase AC generator can be eliminated by using a winding pitch of 2 / 3. 5 / 6. 6 / 7. 4 / 5. 2 / 3. 5 / 6. 6 / 7. 4 / 5. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For the above problem, find the induced voltage of an alternator of it is to deliver a load of 100 A at power factor of 0.8 lagging with terminal voltage of 200 V. 220 V. 230 V. 225 V. 222 V. 220 V. 230 V. 225 V. 222 V. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The supply voltage to an induction motor is reduced by 10%. By what percentage, approximately, will the maximum torque decrease? 40% 19% 5% 10% 40% 19% 5% 10% ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When Flemings right hand rule to find the direction of induced emf, the thumb points towards direction of motion of the conductor. direction of flux. opposite to the direction of motion of the conductor. direction of induced emf. direction of motion of the conductor. direction of flux. opposite to the direction of motion of the conductor. direction of induced emf. ANSWER DOWNLOAD EXAMIANS APP
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