Transformers MCQ - Electrician (Set-1) with Answers

Transformers MCQ - Electrician (Set-1) with Answers

31) Which one of the following methods will be preferred for a transformer cooling, above 200 kVA ?

Answer is:

Insulating oil

32) Scott connections are used to transform :

Answer is:

three-phase supply into two-phase supply

33) Which type of connection in 3 phase transformers is used for the sub-station end of the transmission lines ?

Answer is:

Star-delta

34) In three phase transformer, different methods of connections are possible. Which type of connection used in distribution transformer ?

Answer is:

Delta-star

35) Which type of transformer winding has no ohmic resistance and no magnetic leakage resulting in no losses ?

Answer is:

Ideal transformer

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