Electrical Machines Equalizer rings are used in which of the followings? wave winding both 1 and 2 None of these lap winding wave winding both 1 and 2 None of these lap winding ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC machine yoke offers mechanical protection to the machine produce working flux both A and B flux path completion mechanical protection to the machine produce working flux both A and B flux path completion ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines DC motors are stopped by opening line switches and not by forcing the handle of the motor starter back to OFF position. This is due to occurance of Heavy sparking at brushes. None of these. Both of above. Heavy sparking at the first stud of starting resistance steps. Heavy sparking at brushes. None of these. Both of above. Heavy sparking at the first stud of starting resistance steps. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Example of double excited machine is Synchronous motor. Both are correct. None of these DC Shunt Motor Synchronous motor. Both are correct. None of these DC Shunt Motor ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is power factor of a 3 - φ induction motor at no load? Same as full load. High. Equal to 1. Low. Same as full load. High. Equal to 1. Low. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The polarity of a DC generator can be reversed by reversing the field current. any of above. reversing field electric current as well as direction of rotation. increasing field current. reversing the field current. any of above. reversing field electric current as well as direction of rotation. increasing field current. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS