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Electrical Transformer Quiz #2.
- 25 Questions (Selected Randomly)
- 25 Marks (1 Mark/Question)
- 25 Minutes of Time
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- Answered
- Review
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Question 1 of 25
1. Question
A transformer works on the …..
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Question 2 of 25
2. Question
The transformer of the primary side and secondary side are ….. coupled.
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Question 3 of 25
3. Question
A transformer is an efficient device because it …..
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Question 4 of 25
4. Question
The transformer transfers the electrical energy from primary to secondary usually with a change in …..
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Question 5 of 25
5. Question
Which of the following transformer should never have the secondary open circuited while the primary energies?
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Question 6 of 25
6. Question
How is the transformer cooled for installations rated at less than 5kVA?
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Question 7 of 25
7. Question
An isolation transformer has a primary to secondary turns ratio of …..
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Question 8 of 25
8. Question
The all-day efficiency of the transformer is called as …..
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Question 9 of 25
9. Question
In the transformer, short circuit test helps to find …..
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Question 10 of 25
10. Question
In a transformer, leakage flux …..
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Question 11 of 25
11. Question
In an autotransformer, the primary and secondary are ….. coupled.
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Question 12 of 25
12. Question
The temperature rise of a transformer is directly proportional to …..
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Question 13 of 25
13. Question
The core type of transformer is generally suitable for …..
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Question 14 of 25
14. Question
The lamination of the core transformer decreases …..
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Question 15 of 25
15. Question
A transformer will have zero efficiencies at …..
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Question 16 of 25
16. Question
The efficiency of transformer will be maximum …..
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Question 17 of 25
17. Question
When load of the transformer is decreased, …..loss is decreased.
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Question 18 of 25
18. Question
When the load on the transformer is increased, the eddy current …..
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Question 19 of 25
19. Question
The effect of leakage flux in a transformer is to …..
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Question 20 of 25
20. Question
The leakage flux occurs in a transformer because,
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Question 21 of 25
21. Question
If the power transformer is operated at very high frequencies, then …..
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Question 22 of 25
22. Question
Two things which are the same for primary and secondary of transformer are …..
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Question 23 of 25
23. Question
The winding of the transformer with a greater number of turns will be …..
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Question 24 of 25
24. Question
A transformer does not posses ….. changing property.
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Question 25 of 25
25. Question
The iron core is used to ….. of the transformer.