Electrical Machines Iron loss in a transformer mainly occurs in transformer insulating oil. iron made tank of transformer. steel core in transformer. winding of transformer. transformer insulating oil. iron made tank of transformer. steel core in transformer. winding of transformer. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Brushes are always placed on--------------- , in order to achieve sparkles commutation? GNA either GNA or MNA MNA None of these GNA either GNA or MNA MNA None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Number of slip rings in 3-phase synchronous motor will be 0 1 3 or 4 2 0 1 3 or 4 2 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If residual magnetism of a shunt generator is destroyed accidentally it may be restored by connecting its shunt field to a DC source. to earth. to an AC source. in reverse. to a DC source. to earth. to an AC source. in reverse. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC machine torque depends on which of the following? speed flux (φ) armature current (I) both A and B speed flux (φ) armature current (I) both A and B ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines From no load to full load the slip will None of these not change. slightly decrease. slightly increase. None of these not change. slightly decrease. slightly increase. ANSWER DOWNLOAD EXAMIANS APP
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