Electrical Machines To eliminate the 5th harmonic in the induced voltages their respective pitch factor angle should be 18° 36° 30° 72° 18° 36° 30° 72° ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The armature shaft must be able to withstand twisting strains due to transmission of torque. any unbalanced magnetic pull on the armature core. bending moment due to weight of the armature. All of these twisting strains due to transmission of torque. any unbalanced magnetic pull on the armature core. bending moment due to weight of the armature. All of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The power factor of an induction motor operating at no load will have a value around unity 0.2 lead 0.9 lag 0.2 lag unity 0.2 lead 0.9 lag 0.2 lag ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In which of the following DC Motor the ratio of starting torque to full load torque is minimum? Shunt motor. Cumulative compound motor. Series motor. Differential compound motor. Shunt motor. Cumulative compound motor. Series motor. Differential compound motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following motor is more expensive for same KW output rating ? DC Shunt Motor Synchronous motor. Induction motor. AC single phase motor. DC Shunt Motor Synchronous motor. Induction motor. AC single phase motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The torque angle, in a synchronous motor, is the angle between the supply voltage and the back emf. None of these the rotating stator flux and rotor flux. magnetizing electric current and back emf. the supply voltage and the back emf. None of these the rotating stator flux and rotor flux. magnetizing electric current and back emf. ANSWER DOWNLOAD EXAMIANS APP
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