AEG 301 Renewable Energy and Green Technology Question Paper

University of Agricultural Sciences, Raichur
College of Agriculture, Raichur

FINAL THEORY EXAMINATION – ON LINE

Course No. & Cr.Hrs: AEG 301, 1+1            Time : 2.5 Hours
Title : Renewable Energy and Green Technology   Marks : 25.00
Class : Third year B.Sc.(Agri), II semester 2020-21
ID No : _________________              Date : 23-07-2021

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I A. Choose the correct answer :          10 × 0.5 = 5.0

1. In solar water heater, solar radiation is absorbed by
   a) concentrating collector b) glass c) plastic sheet d) flat plate collector

2. In solar water pumping system, the PV cell converts solar energy into
   a) mechanical energy b) bio energy c) electricity d) solar power

3. For working of wind mill, the minimum speed of wind should be
   a) 5 Km/h b) 10 Km/h c) 20 Km/h d) 30 Km/h

4. Deenbandhu biogas plant used by the farmers is a
   a) floating drum type b) fixed dome type c) KVIC model d) mobile biogas

5. In updraft gasifier, the air intake is at the bottom side and producer gas leaves at
   a) bottom b) middle c) top d) back

6. One type of vertical axis wind turbine is
   a) multi blade wind mill
   b) two blade wind mill
   c) generator
   d) Darieus rotor windmill

7. The fatty acid mono alkyl ester obtained from the transesterification reaction is called as
   a) ester b) biodiesel c) glycerol d) ethanol

8. Petrol and diesel fuels are considered as
   a) bio energy fuels b) non–commercial energy c) commercial energy d) renewable

9. The drag force in wind mill always acts parallel to the direction of
   a) axis b) wind flow c) generator d) blade

10. The producer gas is used for running
    a) petrol engine b) electric motor c) diesel engine d) rotor

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I B. Say True or False          5 × 0.5 = 2.5

11. A solar water heater consists of a collector to collect solar energy and an insulated storage tank to store hot water (  )

12. Producer gas is a biodiesel based fuel (  )

13. Down draft gasifier is used to run I.C. engines (  )

14. Solar photovoltaic cell is used for mechanical work. (  )

15. A.C. motor is used for solar water pumping system (  )

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I C. Match the following          5 × 0.5 = 2.5

16. Biogas [   ] a) Peat

17. Producer gas [   ] b) Biodiesel

18. Biomass [   ] c) Carbon monoxide and hydrogen

19. Transesterification [   ] d) Electricity generation

20. Wind mill [   ] e) Methane

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II. Define the following          10 × 1.0 = 10.0

21. Biomass

22. Transesterification

23. Solar module

24. Renewable energy

25. Lift force and drag force of wind mill

26. Flat plate collector

27. Solar still

28. Pyrolysis

29. Photo voltaic cell

30. Wave energy

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III. Answer any five of the following      5 × 2.0 = 10.0

31. Draw a neat sketch of solar cabinet dryer and show the parts

32. What is the principle of solar cooker?

33. List out any five maintenance of biogas plant

34. List out the differences between biogas and producer gas

35. What are the different types biomass materials used in gasifier unit?

36. What is bio diesel?

37. What is briquette?

38. What are the components of wind mill?

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IV. Answer any four of the following      4 × 2.5 = 10.0

39. Draw a neat sketch of solar water heater and show the parts.

40. Briefly explain the working of solar cooker

41. Draw a neat sketch of solar water pumping system and show the parts.

42. What are the advantages of solar cooker?

43. Briefly explain the working of multi blade wind mill

44. Write the process flow chart for the production of biodiesel.

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V. Answer the following          3 + 3 + 4 = 10.0

45. What are the different types of renewable energy sources available in India?

46. Write the procedure adopted for production of biodiesel from selected seeds oils

47. Briefly explain the working of floating drum type biogas plant along with sketch

Or

48. Briefly explain the working of down draft gasifier along with sketch.