Download DBATU B.Tech 2019 March 4th Semester Electrical Machines Question Paper

DR. BABASAHEB AMBEDKAR TECHNOLOGICAL UNIVERSITY, LONERE

Mid Semester Examination – MARCH-2019

Course: B. Tech in Electrical Engineering Sem: IM

Subject Name: Electrical Machine-I Subject Code: BTEEC 401

Max Marks: 20 Date: 11th MARCH 2019 Duration: 1 Hr

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Instructions to the Students:

1. All questions are compulsory

Q.1 Solve the following (Level/CO) Mark

1. Buchholz relay is used in :
   1. oil immersed transformer
   2. dry type transformer

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   3. in both (a) & (b)
   4. None of the above.
2. Transformer changes the level of........ while transferring the energy from one circuit to another
   1. power
   2. voltage

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   3. frequency
   4. Both (a) & (b).
3. The purpose of lamination in transformer core is to minimize
   1. copper loss
   2. friction loss

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   3. windage loss
   4. eddy current loss
4. The rating of transformer is in.....
   1. KW
   2. Watt

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   3. KVA
   4. None of the above
5. TRUE OR FALSE: Secondary of CT is always open circuited
   1. True
   2. False

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