Electrical Machines Select the motor that should not be started on no load? Shunt motor. Compound motor. Brushless DC motor. Series motor. Shunt motor. Compound motor. Brushless DC motor. Series motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Eg (generated emf) and Eb (back emf) both are different. none of above. same. changes. different. none of above. same. changes. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For high current and low current rating which winding is employed to DC machine? Lap winding None of above Both lap and wave winding Wave winding Lap winding None of above Both lap and wave winding Wave winding ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The oscillation in a synchronous motor can be damped out by oscillation cannot be damped. maintaining constant excitation. running the motor on leading power factors. providing damper bars in the rotor pole faces. oscillation cannot be damped. maintaining constant excitation. running the motor on leading power factors. providing damper bars in the rotor pole faces. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A DC series motor drawing an armature current of Ia is operating under saturated magnetic conditions. The torque developed in the motor is proportional to 1/Ia I/Ia2 Ia2 Ia 1/Ia I/Ia2 Ia2 Ia ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a loaded DC generator, if the brushes are given a shift from the interpolar axis in the direction of rotation, then the commutation will deteriorate with fall of terminal voltage. improve with rise in terminal voltage. deteriorate with rise in terminal voltage. improve with fall of terminal voltage. deteriorate with fall of terminal voltage. improve with rise in terminal voltage. deteriorate with rise in terminal voltage. improve with fall of terminal voltage. ANSWER DOWNLOAD EXAMIANS APP
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