Transformers 2 Electrical Engineering MCQ Practice Quiz 9

Power transformers are generally designed to have maximum efficiency around_____?

Which winding of the transformer has less cross-sectional area_____?

Silicon steel used in lamination's mainly reduces_____?

The value of flux involved m the e .m .f. equation of a transformer is_____?

The main reason for generation of harmonics in a transformer could be_____?

A transformer oil must be free from______?

The core used in high frequency transformer is usually_____?

In a transformer the resistance between its primary and secondary is_____?

Material used for construction of transformer core is usually_____?

The transformer ratings are usually expressed in terms of____?

The chemical used in breather____?

In a transformer the resistance between its primary and secondary is_____?

Material used for construction of transformer core is usually____?

The transformer ratings are usually expressed in terms of_____?

The chemical used in breather is_____?

In a transformer the tapping are generally provided on____?

The maximum efficiency of a distribution transformer is____?

Power transformers are designed to have maximum efficiency at____?

Natural oil cooling is used for transformers up to a rating of____?

A common method of cooling a power transformer is______?

Which winding in a transformer has more number of turns_____?

A transformer transforms_____?

Which of the following is not a part of transformer installation______?

The dielectric strength of transformer oil is expected to be______?

The path of a magnetic flux in a transformer should have_____?