Electrical Machines In which of the following DC Motor the ratio of starting torque to full load torque is minimum? Shunt motor. Differential compound motor. Series motor. Cumulative compound motor. Shunt motor. Differential compound motor. Series motor. Cumulative compound motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following voltage regulator is preferred for providing large values of load current? Transistor shunt regulator. None of these Zener diode shunt regulator. Transistor series regulator. Transistor shunt regulator. None of these Zener diode shunt regulator. Transistor series regulator. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC generators, the brushes remain in contact with conductors which lie under south pole. lie in the inter polar gaps. there is no hard and fast rule for this. lie under north pole. lie under south pole. lie in the inter polar gaps. there is no hard and fast rule for this. lie under north pole. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What does happen if tripled harmonics given to induction motor? Will results in short circuit. Will results in open circuit. Fail to start. Nothing will happen. Will results in short circuit. Will results in open circuit. Fail to start. Nothing will happen. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The armature resistance of the dc motor is generally of the range 100 ohm. 0.1 ohm. 50 ohm. 0.5 ohm. 100 ohm. 0.1 ohm. 50 ohm. 0.5 ohm. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a synchronous motor hunting can be reduced to minimum possible by providing damper winding in the rotor pole faces. designing the motor for adequate synchronizing power. using a flywheel. any of above methods. providing damper winding in the rotor pole faces. designing the motor for adequate synchronizing power. using a flywheel. any of above methods. ANSWER DOWNLOAD EXAMIANS APP
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