Transformers MCQ - Electrician (Set-1) with Answers

Transformers MCQ - Electrician (Set-1) with Answers

6) For equal capacity, a shell type transformer as compared to a core type transformer will have :

Answer is:

low iron-loss

7) If the supply frequency of a transformer is reduced then its iron-loss will be :

Answer is:

low

8) If the transformers have different voltage ratios and their parallel operation is desired then :

Answer is:

they will not work at all

9) The capacity of a star-connected transformer as compared to a delta-connected transformer will be :

Answer is:

1/3 times

10) In the breather of a transformer, silica-jelly is used to stop the _____ to reach up to the insulating oil :

Answer is:

moisture