Electrical Machines If field current is decreased in shunt dc motor, the speed of the motor decreases. None of these remains same. increases. decreases. None of these remains same. increases. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC shunt motor if load is increased, the speed remains constant. increase proportional. reduce slightly. increased slightly. remains constant. increase proportional. reduce slightly. increased slightly. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The sequence of induction motor is RYB, then the direction of induction motor can be changed by which of the following sequence? RBY BRY BYR All of these RBY BRY BYR All of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If starting current of a 3 - Φ induction motor is 5 times the rated current, while rated slip is 4 %, then ratio of starting torque to full load torque is 0.4. 0.6. 1. 0.8. 0.4. 0.6. 1. 0.8. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The synchronous motor can be started by coupling it with a small AC induction motor called the pony motor. providing damper winding in its rotor circuit. any of the above methods. coupling it with a DC compound motor. coupling it with a small AC induction motor called the pony motor. providing damper winding in its rotor circuit. any of the above methods. coupling it with a DC compound motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines No load saturation characteristics are plotted between no load voltage and armature current short circuit current and armature current no load voltage and field current short circuit current and field current no load voltage and armature current short circuit current and armature current no load voltage and field current short circuit current and field current ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS