Search
.Management Sciences
A. electrical fault inside the transformer itself
B. electrical fault outside the transformer in outgoing feeder
C. for both outside and inside faults
D. none of the above
Related Mcqs:
- Efficiency of a power transformer is of the order of________________?
- A. 100 per cent B. 98 per cent C. 50 per cent D. 25 per cent...
- The thickness of laminations used in a transformer is usually____________?
- A. 0.4 mm to 0.5 mm B. 4 mm to 5 mm C. 14 mm to 15 mm D. 25 mm to 40 mm...
- If the supply frequency to the transformer is increased,”the iron loss will__________?
- A. not change B. decrease C. increase D. any of the above...
- For the parallel operation of single phase transformers it is necessary that they should have___________?
- A. same efficiency B. same polarity C. same kVA rating D. same number of turns on the secondary side....
- Which of the following statements regarding an idel single-phase transformer having a turn ratio of 1 : 2 and drawing a current of 10 A from 200 V A.C. supply is incorrect?
- A. Its secondary current is 5 A B. Its secondary voltage is 400 V C. Its rating is 2 kVA D. Its secondary current is 20 A E. It is a step-up transformer...
Recent Comments