Electrical Machines Armature resistance control method is used for the _______ ? below rated speed above rated speed both 1 and 2 None of these below rated speed above rated speed both 1 and 2 None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines To eliminate 5th harmonic in the induced voltage phase breadth should be 36° 18° 30° 72° 36° 18° 30° 72° ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines To achieve spark less commutation brushes of DC generator are rocked ahead so as to bring them in magnetic neutral axis. just ahead of magnetic neutral axis. just behind the magnetic neutral axis. None of these in magnetic neutral axis. just ahead of magnetic neutral axis. just behind the magnetic neutral axis. None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines It is an advisable to use auto transformer if the transformation ratio is 0.5. near to 1. 0.25. Greater than 1. 0.5. near to 1. 0.25. Greater than 1. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In alternator, the rotary part is armature. core. none of these. magnetic field poles. armature. core. none of these. magnetic field poles. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a synchronous motor hunting can be reduced to minimum possible by any of above methods. providing damper winding in the rotor pole faces. designing the motor for adequate synchronizing power. using a flywheel. any of above methods. providing damper winding in the rotor pole faces. designing the motor for adequate synchronizing power. using a flywheel. ANSWER DOWNLOAD EXAMIANS APP
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