Transformers MCQ - Electrician (Set-1) with Answers

Transformers MCQ - Electrician (Set-1) with Answers

71) What may be the cause for over heating of a transformer ?

Answer is:

Load is too high

72) In which part of the distribution transformer, maximum heat occurs ?

Answer is:

L.V. and H.V. winding

Explanation:

Assuming that the transformer is working at its rated capacity, the maximum heating occurs in the winding. The transformer core is made using low loss materials to make it more efficient and thus the core loss at rated load is a fraction of the winding loss.

73) What principle makes the instrument transformer working ?

Answer is:

Mutual induction

74) What is the standard value of secondary current of current transformer ?

Answer is:

5 amperes

75) Current transformers are classified into five types. Which type of current transformer (C.T.) principle is used in clip on or clamp on Ammeter ?

Answer is:

71) What may be the cause for over heating of a transformer ?

Load is too high

72) In which part of the distribution transformer, maximum heat occurs ?

L.V. and H.V. winding

73) What principle makes the instrument transformer working ?

Mutual induction

74) What is the standard value of secondary current of current transformer ?

5 amperes

75) Current transformers are classified into five types. Which type of current transformer (C.T.) principle is used in clip on or clamp on Ammeter ?

Ring type C.T.