Electrical Machines The reduced air gap results in an increase cost of operation. power factor. breaking torque. starting torque. cost of operation. power factor. breaking torque. starting torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Under operating conditions the rotor conductor should be _________________ in induction motor. semi closed or semi opened. always opened. none. always closed. semi closed or semi opened. always opened. none. always closed. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The synchronous speed of an induction motor will be increased by increasing of frequency. decreasing of frequency. increasing number of poles. speed can not be increased. increasing of frequency. decreasing of frequency. increasing number of poles. speed can not be increased. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When the rotor of a 3 phase induction motor is blocked then the slip is 0.7. 0.3. 0.54. 1. 0.7. 0.3. 0.54. 1. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In induction motor the 7th harmonic torque may make the motor rotate at (1 / 7)th synchronous speed. This is called cogging. harmonics. crawling. resonance. cogging. harmonics. crawling. resonance. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS