Electrical Machines Which of the following represents the pitch factor? Cos (α/2) sin (α/2) Cos α² Cos α Cos (α/2) sin (α/2) Cos α² Cos α ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following motor is more expensive for same KW output rating ? AC single phase motor. Induction motor. DC Shunt Motor Synchronous motor. AC single phase motor. Induction motor. DC Shunt Motor Synchronous motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the mechanical angle α between the stator and rotor poles increases, then the stator current Remains unchanged. Decreases. None of above. Increases. Remains unchanged. Decreases. None of above. Increases. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following rotor requires damper winding? Salient pole rotor. None of these Both type rotor. Cylindrical rotor. Salient pole rotor. None of these Both type rotor. Cylindrical rotor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The magnetic circuit of a dc shunt generator with negligible armature resistance and brush contact voltage drop remains unsaturated when it delivers full-load current at rated terminal voltage. The brushes are kept in the interpolar axis and speed is maintained constant. When the load is switched off, the terminal voltage would increase decrease become zero remain the same increase decrease become zero remain the same ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For the above problem, find the induced voltage of an alternator of it is to deliver a load of 100 A at power factor of 0.8 lagging with terminal voltage of 200 V. 230 V. 222 V. 225 V. 220 V. 230 V. 222 V. 225 V. 220 V. ANSWER DOWNLOAD EXAMIANS APP
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