Electrical Machines To eliminate 5th harmonic in the induced voltage phase breadth should be 18° 30° 36° 72° 18° 30° 36° 72° ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a transformer operating at constant voltage if the input frequency increases, the core loss None of these decrease. remains constant. increase. None of these decrease. remains constant. increase. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines During no load test, an induction motor draws power for core loss and copper loss. for core loss and windage and friction loss. only for the small copper loss. for copper loss and windage friction loss. for core loss and copper loss. for core loss and windage and friction loss. only for the small copper loss. for copper loss and windage friction loss. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is the speed of stator rotating magnetic field with respect to rotor rotating magnetic field? Zero Slip speed None of these Synchronous speed Zero Slip speed None of these Synchronous speed ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Armature reaction of an unsaturated DC machine is magnetising. none of above. demagnetising. crossmagnetising. magnetising. none of above. demagnetising. crossmagnetising. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines An unexcited single phase synchronous motor is repulsion motor. universal motor. reluctance motor. AC series motor. repulsion motor. universal motor. reluctance motor. AC series motor. ANSWER DOWNLOAD EXAMIANS APP
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