Q: The purpose of oil in a transformer is to
(a)protect the transformer from rusting
(b)avoid wear and tear of the transformer
(c)transfer heat from winding and core to the cooling surfaces of the transformer
(d)avoid noise in a transformer
Correct Answer: (c)
The correct answer is (c) 'transfer heat from winding and core to the cooling surfaces of the transformer'. This question from the General Studies domain tests knowledge of Miscellaneous.