Explore topic-wise MCQs in Transformers.

This section includes 4 Mcqs, each offering curated multiple-choice questions to sharpen your Transformers knowledge and support exam preparation. Choose a topic below to get started.

1.

Off-circuit tap changer is used when transformer is ________________

A. deenergized
B. energized
C. can be used in either energy conditions
D. never used
Answer» B. energized
Discussion
2.

Tap changing do not causes change in losses of a transformer.

A. True
B. False
Answer» C.
Discussion
3.

Tapping of HV winding is advantageous for _____________

A. step-up transformer
B. step-down transformer
C. both type of transformers
D. never advantageous
Answer» C. both type of transformers
Discussion
4.

In case of large voltage variations transformers are tapped at _____________

A. LV
B. HV
C. Both LV and HV
D. Can t be tapped
Answer» C. Both LV and HV
Discussion