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 fall of terminal voltage. deteriorate with rise in terminal voltage. improve with rise in terminal voltage. deteriorate with fall of terminal voltage. improve with fall of terminal voltage. deteriorate with rise in terminal voltage. improve with rise in terminal voltage. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The teeth in the armature of a DC machines are sometimes skewed. This is done to reduce vibrations. hysteresis loss. eddy electric current loss. copper loss. vibrations. hysteresis loss. eddy electric current loss. copper loss. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The power factor of an induction motor operating at no load will have a value around 0.9 lag 0.2 lag unity 0.2 lead 0.9 lag 0.2 lag unity 0.2 lead ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The stator core of a 3 - Φ induction motor is laminated in order to reduce the weight of the stator. hysteresis loss. eddy current loss. both of the above. weight of the stator. hysteresis loss. eddy current loss. both of the above. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which motor used in Lathe machine? D.C . series motor. D.C. cumulative compound motor. None of these D.C. shunt motor. D.C . series motor. D.C. cumulative compound motor. None of these D.C. shunt motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a transformer to be tested at full load conditions but consuming only losses from the main, we do load test back to back test None of these OC and SC tests load test back to back test None of these OC and SC tests ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS