Electrical Machines The speed of a 50 Hz three phase induction motor under full load condition is 725 rpm the number of poles of the motor are ______________. 6. 2. 8. 4. 6. 2. 8. 4. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC Shunt Motor if the load current increases keeping the terminal voltage constant, then flux will any of the above. decrease. remain constant. increase. any of the above. decrease. remain constant. increase. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When excitation is increased (over excitation), the synchronous generator operates at any of the above. lagging power factor. unity power factor. leading power factor. any of the above. lagging power factor. unity power factor. leading power factor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The speed of rotation of 5th harmonic component in the stator of an induction motor is 5 times the synchronous speed. 0.5 times the synchronous speed. (1 / 15) times the synchronous speed. (1 / 5) times the synchronous speed. 5 times the synchronous speed. 0.5 times the synchronous speed. (1 / 15) times the synchronous speed. (1 / 5) times the synchronous speed. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Compensating winding are used to rectify the flux density waveform at region under main pole. throughout the air gap. interpole region. None of these region under main pole. throughout the air gap. interpole region. None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines DC machine is a conduction machine. convection machine. both are correct. none of above are correct. conduction machine. convection machine. both are correct. none of above are correct. ANSWER DOWNLOAD EXAMIANS APP
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