Utilization Of Electric Energy | Exam Paper | 2074 [2018] | RE-ELE401 | SEE

DR Gurung

- April 26, 2018 April 30, 2018

SEE - 2074 (2018)
UTILIZATION OF ELECTRIC ENERGY
RE-ELE401
Time: 1hr 15 minutes
Full Marks: 40

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

Group 'A'

Attempt any ten questions. [10x1=10]

1. Name the device that converts:
a) Electrical energy into mechanical energy.
b) Chemical energy into electrical energy.
2. Write any two applications of electrical energy.
3. Define wave-length of a wave.
4. What is space height ratio?
5. Define glare.
6. Why is sodium vapour lamp not suitable for interior lighting purpose.
7. Define reflectors.
8. What is electric drive?
9. List out the best advantage of electric drive.
10. What are the different types of railway system?
11. Define traction system.
12. In what type of load do we have lagging power factor? Show it with necessary phasor diagram.
13. What is the main objective of tariff?

Group 'B'

Attempt any five questions. [5x2=10]

14. What type of conductors can be used as a filament in incandescent lamp?
15. Write short note on LED lamps.
16. What are the different parts of an electric drive? Write their main functions.
17. Compare AC traction system with DC traction system.
18. Write short note on trolley bus.
19. Define power factor. Write any two causes of low power factor.
20. What are the factors to be considered for determining tariff system?

Group 'C'

Attempt any five questions. [5x4=20]

21. What are the different types of lighting schemes? Explain them in detail.
22. State the laws of illumination and hence derive the relation

Derive The Relation

where the symbols have usual meaning.
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 Utilization Of Electric Energy RE-ELE401 Question 2074-2018

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DR Gurung

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

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