Electrical Machines The armature of DC machine is made of silicon steel lamination to increase the permeability. reduce eddy current loss only. reduce hysteresis loss only. reduce both eddy current and hysteresis loss. increase the permeability. reduce eddy current loss only. reduce hysteresis loss only. reduce both eddy current and hysteresis loss. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Why are capacitors used with large AC induction motor? Improve power factor. Improve voltage level. Improve power level. Improve current level. Improve power factor. Improve voltage level. Improve power level. Improve current level. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The synchronous reactance( Xs) is the combined reactance due to armature reaction and leakage flux reactance due to armature reaction of the machine reactance either due to armature reaction or leakage flux reactance due to leakage flux combined reactance due to armature reaction and leakage flux reactance due to armature reaction of the machine reactance either due to armature reaction or leakage flux reactance due to leakage flux ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If field current is decreased in shunt dc motor, the speed of the motor remains same. None of these increases. decreases. remains same. None of these increases. decreases. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A DC generator without commutator is a DC motor induction motor DC generator AC generator DC motor induction motor DC generator AC generator ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The speed of a 50 Hz three phase induction motor under full load condition is 725 rpm the number of poles of the motor are ______________. 2. 6. 8. 4. 2. 6. 8. 4. ANSWER DOWNLOAD EXAMIANS APP
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