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Code: C16 EE-401

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* * * Code: C16 EE-401 6440 BOARD DIPLOMA EXAMINATION MARCH/APRIL - 2019 DIPLOMA IN ELECTRICAL AND ELECTRONICS ENGINEERING A.C. MACHINES -I FOURTH SEMESTER EXAMINATION Time: 3 Hours Total Marks: 80 PART - A (3m x 10 = 30m) Note 1:Answer all questions and each question carries 3 marks 2:Answers should be brief and straight to the point and shall not exceed 5 simple sentences PART - B (10m x 5 = 50m) Note 1:Answer any five questions and each carries 10 marks 2:The answers should be comprehensive and the criteria for valuation is the content but not the length of the answer 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. Page: 1 of 3 www.manaresults.co.in
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Page 1: Code: C16 EE-401

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Code: C16 EE-401

6440 BOARD DIPLOMA EXAMINATION

MARCH/APRIL - 2019 DIPLOMA IN ELECTRICAL AND ELECTRONICS ENGINEERING

A.C. MACHINES -I FOURTH SEMESTER EXAMINATION

Time: 3 Hours Total Marks: 80

PART - A (3m x 10 = 30m)

Note 1:Answer all questions and each question carries 3 marks 2:Answers should be brief and straight to the point and shall not exceed 5 simple sentences

PART - B (10m x 5 = 50m) Note 1:Answer any five questions and each carries 10 marks 2:The answers should be comprehensive and the criteria for valuation is the content but not the length of the answer

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Code: C16 EE-401

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LABPC-10
Typewritten text
a) Explain OFF-Load tap changing of power transformer with neat sketch.
LABPC-10
Typewritten text
b) Derive the condition for maximum efficiency of a transformer.
LABPC-10
Typewritten text
a) Define pitch factor in an alternator. Derive expression for pitch factor with neat vector diagrams.
LABPC-10
Typewritten text
b) Explain various types of exciters used in Alternators.
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