Electrical Machines An induction motor has synchronous speed of 1500 rpm. What will be the slip when it is running at a speed of 1450 rpm? +3% +3.33% -3.33% -3% +3% +3.33% -3.33% -3% ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The armature of a DC motor is laminated to reduce copper loss. hysteresis loss. friction and windage loss. eddy current loss. copper loss. hysteresis loss. friction and windage loss. eddy current loss. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When a synchronous motor is running at synchronous speed, the damper winding produces both 1 and 2. eddy current torque. damping torqe. no torque. both 1 and 2. eddy current torque. damping torqe. no torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of following components of a DC generator plays vital role for providing direct electric current of a DC generator? Equalizer rings. Eye bolt. Commutator. Dummy coils. Equalizer rings. Eye bolt. Commutator. Dummy coils. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Star - delta method of starting of motor is not possible in case of high speed motor. high torque motor. low horse power motor. single phase induction motor. high speed motor. high torque motor. low horse power motor. single phase induction motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In case of a DC Shunt motor if the load is decreased to some extent, what will happen to its speed? The speed will increase abruptly. The speed will increase in proportion to reduction in load. The speed will remains almost constant. The speed will increase gradually. The speed will increase abruptly. The speed will increase in proportion to reduction in load. The speed will remains almost constant. The speed will increase gradually. ANSWER DOWNLOAD EXAMIANS APP
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