Electrical Machines Rotating magnetic field is produced in an induction motor because of stator winding. rotor winding. None of these either stator winding or rotor winding. stator winding. rotor winding. None of these either stator winding or rotor winding. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following is/are the methods to reduce the armature reaction and its effects? pole chamfering pole stacking All of these compensating winding pole chamfering pole stacking All of these compensating winding ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The oscillation in a synchronous motor can be damped out by oscillation cannot be damped. maintaining constant excitation. running the motor on leading power factors. providing damper bars in the rotor pole faces. oscillation cannot be damped. maintaining constant excitation. running the motor on leading power factors. providing damper bars in the rotor pole faces. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The efficiency of a transformer is mainly dependent on core losses. dielectric losses. stray losses. copper losses. core losses. dielectric losses. stray losses. copper losses. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In synchronous generator V curve is drawn between field current on X-axis and power factor on Y-axis. either of these. field current on X-axis and armature current on Y-axis. field current on Y-axis and armature current on X-axis. field current on X-axis and power factor on Y-axis. either of these. field current on X-axis and armature current on Y-axis. field current on Y-axis and armature current on X-axis. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following represents the commutator pitch? The distance between the staring of first coil and its next successive coil Number of commutator segments between two successive coils. Number of conductors spanned by one coil at the back end of the armature. Number of conductors spanned by one coil at the front end of the armature. The distance between the staring of first coil and its next successive coil Number of commutator segments between two successive coils. Number of conductors spanned by one coil at the back end of the armature. Number of conductors spanned by one coil at the front end of the armature. ANSWER DOWNLOAD EXAMIANS APP
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