Electrical Machines A commutator in dc machine provide ----------------- rectification? half wave half wave controlled full wave full wave controlled half wave half wave controlled full wave full wave controlled ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of these types of motor is used in elevators? DC compound motor. None of these. DC series motor. DC shunt motor. DC compound motor. None of these. DC series motor. DC shunt motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the field of a dc shunt motor gets opened while the motor is running, then the armature current will drop motor will become slow. motor will attain dangerously high speed armature will oscillate about original speed as the mean speed armature current will drop motor will become slow. motor will attain dangerously high speed armature will oscillate about original speed as the mean speed ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Armature coil is short circuited by brushes when it lies along neutral axis. in any of above positions. along field axis. in none of above positions. along neutral axis. in any of above positions. along field axis. in none of above positions. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When the excitation of normally operating unloaded, salient pole synchronous motor suddenly gets disconnected, it continues to run as a switched reluctance motor. DC motor. variable reluctance motor. induction motor. switched reluctance motor. DC motor. variable reluctance motor. induction motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In electric locomotive which of the following motor are used ? Separately compound motor. DC series motor. Shunt motor. Synchronous motor. Separately compound motor. DC series motor. Shunt motor. Synchronous motor. ANSWER DOWNLOAD EXAMIANS APP
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