Transformers 1 Electrical Engineering MCQ Practice Quiz 8

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Transformers 1 Electrical Engineering Practice Quiz 8

1 / 25

The noise produced by a transformer is termed as_____?

2 / 25

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

3 / 25

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

4 / 25

A Transformer transforms_____?

5 / 25

A transformer can have regulation closer to zero____?

6 / 25

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

7 / 25

A shell-type transformer has____?

8 / 25

Natural air cooling is generally restricted for transformers up to_____?

9 / 25

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

10 / 25

The transformer oil should have volatility and viscosity_____?

11 / 25

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

12 / 25

Short circuit test on transformers is conducted to determine_____?

13 / 25

Open circuit test on transformers is conducted to determine_____?

14 / 25

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

15 / 25

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

16 / 25

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

17 / 25

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

18 / 25

The hum in a transformer is mainly attributed to_____?

19 / 25

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

 

20 / 25

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

21 / 25

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

22 / 25

A transformer can have zero voltage regulation at_____?

23 / 25

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

24 / 25

special test_____?

25 / 25

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

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