Transformer MCQ Part 8

Transformer MCQ Questions

The efficiency of two identical transformers under load conditions can be determined by which of the following tests

The efficiency of two identical transformers under load conditions can be determined by which of the following tests:

1. Back to back test
2. Short circuit test
3. Open circuit test
4. None of these

Correct answer: 1. Back to back test

For continuously operating transformer, the maximum temperature rise will occur in which portion

For continuously operating transformer, the maximum temperature rise will occur in which portion:

1. Core
2. Tank
3. Windings
4. None of these

Correct answer: 3. Windings

The primary and secondary inductance of an ideal transformer is inifnite

The primary and secondary inductance of an ideal transformer is inifnite:

1. True
2. False

Correct answer: 2. False

A transformer can’t deal with DC supply, the obvious reason being

A transformer can’t deal with DC supply, the obvious reason being:

1. DC has high losses
2. Rate of change of flux is zero
3. Both of these
4. None of these

Correct answer: 2. Rate of change of flux is zero

Keeping constant voltage an increase in frequency will

Keeping constant voltage an increase in frequency will:

1. Increase Eddy current losses
2. Decrease Eddy current losses
3. Cause no effect on Eddy current losses

Correct answer: 3. Cause no effect on Eddy current losses

More Questions by Parts on Transformers:

1. Transformer MCQ Questions Part 1
2. Transformer MCQ Questions Part 2
3. Transformer MCQ Questions Part 3
4. Transformer MCQ Questions Part 4
5. Transformer MCQ Questions Part 5
6. Transformer MCQ Questions Part 6
7. Transformer MCQ Questions Part 7