Electrical Machines Iron loss in a transformer mainly occurs in transformer insulating oil. steel core in transformer. winding of transformer. iron made tank of transformer. transformer insulating oil. steel core in transformer. winding of transformer. iron made tank of transformer. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following machines have highest power factor with respect to magnetizing current? Open slot type machines. Semi closed slot type machine. Any of the above. Closed slot type machines. Open slot type machines. Semi closed slot type machine. Any of the above. Closed slot type machines. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC generators, electric current to the external circuit from armature is given through commutator. solid connection. slip rings. none of above. commutator. solid connection. slip rings. none of above. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The low voltage winding of a 400/230 V single phase 50 Hz transformer is to be connected to keep the magnetization current at the same level in both the cases the voltage at 25 Hz should be 115 V 460 V 65 V 230 V 115 V 460 V 65 V 230 V ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Compensating winding is placed in the main field pole shoe armature core All of these main field pole shoe armature core All of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In auto transformer if the turn ratio is K, what is the power transferred inductively? both A and B (1-K) × input power None of these K × input power both A and B (1-K) × input power None of these K × input power ANSWER DOWNLOAD EXAMIANS APP
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