Electrical Machines Essential conditions for two DC generators are connecting for parallel operation is/are both A and B. rating of generators should be same. polarities should be same. terminal voltage should be same. both A and B. rating of generators should be same. polarities should be same. terminal voltage should be same. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Maximum efficiency will occur, when copper loss is_______to iron loss? equal to any of the above less than greater than equal to any of the above less than greater than ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Stray losses in transformer occurs in steel core. transformer insulating oil. paper insulation in transformers. winding conductors and steel structures of transformer. steel core. transformer insulating oil. paper insulation in transformers. winding conductors and steel structures of transformer. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines During no load test, an induction motor draws power for copper loss and windage friction loss. for core loss and windage and friction loss. only for the small copper loss. for core loss and copper loss. for copper loss and windage friction loss. for core loss and windage and friction loss. only for the small copper loss. for core loss and copper loss. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When pure inductive load is connected to the alternator, what is the effect of armature reaction? Demagnetization None of these Cross magnetization Magnetization Demagnetization None of these Cross magnetization Magnetization ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Synchronising power of a synchronous motor varies directly as synchronous reactances Xs inversely as 1/Xs All of these directly as Xs2 directly as synchronous reactances Xs inversely as 1/Xs All of these directly as Xs2 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS