Electrical Machine | Exam Paper | 2074 [2018] | RE-ELE601 | SEE

DR Gurung

- April 26, 2018

SEE - 2074 (2018)
ELECTRICAL MACHINE
RE-ELE601
Time: 1hr 15 minutes
Full Marks: 40

| DOWNLOAD PDF | SEE Electrical Machine | Question Paper | RE-ELE601 | 2074/2018

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Check and Download | All Question Papers Of SEE | 2074/2018

Candidates are required to give their answer according to the given instructions.

Group 'A'

Attempt any ten questions. [10x1=10]

1. Relate input voltage (v1), current (I1) and output voltage (v2), current (I2) mathematically.
2. Why is transformer called static device?
3. Why is cooling important in transformer?
4. What is the function of commulator in dc machine.
5. Why is starter needed in dc motors?
6. What is cumulative compound motor?
7. What are the types of rotor present in three phase induction motor?
8. What is rotating magnetic field?
9. Define slip.
10. Which rotor construction is preferred in high speed alternator?
11. Write two applications of synchronous motor.
12. What is universal motor?
13. Draw labeled circuit diagram of split phase induction motor.

Group 'B'

Attempt any five questions. [5x2=10]

14. What do you mean by commercial efficiency of transformer?
15. What is the role of back emf in dc motor?
16. Describe the torque-slip characteristics of dc series motor.
17. A 60Hz induction motor has 2 poles and run at 3510 rpm. Calculate the synchronous speed and percentage slip.
18. Describe the working principle of three phase induction motor.
19. Draw circuit diagram of primary resistance method of starting three phase induction motor.
20. What are the advantages of parallel operation of alternator?

Group 'C'

Attempt any five questions. [5x4=20]

21. Describe the no-load operation of transformer with circuit and phasors and also draw equivalent circuit.
22. Describe the transformer losses in brief.
23. Derive torque equation of dc motor.
24. Explain the types of speed control in three phase induction motor.
25. What are the requirements that needs to be fulfilled for parallel operation of alternator?
26. Describe construction and working principle of shaded pole induction motor with necessary diagrams.

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SEE Electric Machine RE-ELE601 Question 2074-2018

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SEE Electric Machine RE-ELE601 Question Paper 2074
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Solution Of Electric Machine RE-ELE601 Question SEE 2074

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DR Gurung

A Learner (अज्ञान जस्तो ठूलो शत्रु अरु केही छैन।) 🙏🙏

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