Electrical Machines In an auto transformer, for what value of turn ratio, power transferred by inductively and conductively are same? any of the above 1 0 0.5 any of the above 1 0 0.5 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In which of the following speed control of DC motor the speed obtained is below than the rated speed? Field resistance control. Any of above. Armature circuit resistance control. Armature voltage control. Field resistance control. Any of above. Armature circuit resistance control. Armature voltage control. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Cogging and crawling are phenomena associated with cage induction machines and they are essentially the same. the former at a fraction of its rate speed and the latter during starting. any of the above. the former during starting and the latter at a fraction of its rated speed. cage induction machines and they are essentially the same. the former at a fraction of its rate speed and the latter during starting. any of the above. the former during starting and the latter at a fraction of its rated speed. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For satisfactory parallel operation of two transformers which of the following conditions is most essential, voltage ratio of all transformers must be same. MVA rating of all transformer inversely proportional to impedance. percentage impedance of all transformers must be same. polarities of all transformers must be same. voltage ratio of all transformers must be same. MVA rating of all transformer inversely proportional to impedance. percentage impedance of all transformers must be same. polarities of all transformers must be same. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following is minimized by laminating the core of a transformer? Hysteresis loss. Copper loss. Stray loss. Eddy current loss. Hysteresis loss. Copper loss. Stray loss. Eddy current loss. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Dissolve gas analysis of transformer oil is carried out to determine condition of transformer oil. condition of bushings. condition of bushing stud. condition of transformer. condition of transformer oil. condition of bushings. condition of bushing stud. condition of transformer. ANSWER DOWNLOAD EXAMIANS APP
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