Electrical Machines Wave winding is prefered for which of the following rating? low current and high voltage high current and low voltage low current and low voltage high current and high voltage low current and high voltage high current and low voltage low current and low voltage high current and high voltage ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When the rotor speed, in a synchronous machine, becomes more than the synchronous speed during hunting, the damper bars develop DC motor torque. synchronous motor torque. induction motor torque. induction generator torque. DC motor torque. synchronous motor torque. induction motor torque. induction generator torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a single phase capacitor start induction motor which of the following is valid? None of these. Direction of rotation cannot be changed. Rotation can be changed by interchanging supply terminals. Rotation can be changed by reversing main winding terminals. None of these. Direction of rotation cannot be changed. Rotation can be changed by interchanging supply terminals. Rotation can be changed by reversing main winding terminals. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following induction motor has the highest starting torque? Slip ring induction motor. Squirrel cage induction motor. Same in both induction motors. None of these Slip ring induction motor. Squirrel cage induction motor. Same in both induction motors. None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If terminal voltage of one 1000 rpm shunt motor is reduced to half the speed of the motor will be 500 rpm 2000 rpm 1000 rpm 250 rpm 500 rpm 2000 rpm 1000 rpm 250 rpm ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The armature of a DC motor is laminated to reduce friction and windage loss. eddy current loss. hysteresis loss. copper loss. friction and windage loss. eddy current loss. hysteresis loss. copper loss. ANSWER DOWNLOAD EXAMIANS APP
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