Transformers 1 Electrical Engineering MCQ Practice Quiz 8

The noise produced by a transformer is termed as_____?

Which of the following parts of a transformer is visible from outside_____?

For a transformer, operating at constant load current, maximum efficiency will occur at_____?

A Transformer transforms_____?

A transformer can have regulation closer to zero____?

In a transformer the resistance between its primary and secondary should be_____?

A shell-type transformer has____?

Natural air cooling is generally restricted for transformers up to_____?

The secondary winding of which of the following transformers is always kept closed_____?

The transformer oil should have volatility and viscosity_____?

Minimum voltage regulation occurs when the power factor of the load is_____?

Short circuit test on transformers is conducted to determine_____?

Open circuit test on transformers is conducted to determine_____?

Part of the transformer which is most subject to damage from overheating is____?

Which type of winding is used in 3 phase shell-type transformer_____?

The transformer lamination's are insulated from each other by_____?

The maximum load that a power transformer can carry is limited by its_____?

The hum in a transformer is mainly attributed to_____?

Which of the following is the most likely source of harmonics in a transformer____?

Which of the following loss in a transformer is zero even at full load_____?

If the supply frequency to the transformer is increased ,"the iron loss will____?

A transformer can have zero voltage regulation at_____?

An ideal transformer will have maximum efficiency at a load such that_____?

special test_____?

Which of the following does not change in an ordinary transformer_____?