Reg. No.
B.E. B.Tech. DEGREE EXAMINATION, MAY 2017 Elective Mechanical Engineering 14UME906 RENEWABLE SOURCES OF ENERGY (Regulation 2014) Duration: Three hours Maximum: 100 Marks Answer ALL Questions PART A (10 x 1 10 Marks)

1. Which of the following is not a primary energy source? Oil Natural Gas Electricity Wood
2. Which of the following is a renewable energy source? Bitumen Solar Energy Coal Natural Gas
3. At present the share of hydro power in the country's total generated units is around 20% 25% 30% 35%
4. Greenhouse effect refers to increase in
Global temperature Carbon monoxide Atmospheric pressure Greenery 5. Ratio of maximum demand to connected load is termed as Load factor Power factor Demand factor Form factor
6. The objective of energy management is To minimize energy costs To minimize environmental effects Both and None of these
Question Paper Code: 41782
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7. A mass balance for energy conservation does not consider which of the following
steam water raw materials lubricating oil
8. In the equation, Energy consumed C x Production), where is Variable energy consumption Fixed energy consumption Specific energy Consumption None of these
9. The quantity of heat required to raise 1 kg of a substance by 1oC is known as sensible heat specific heat latent heat calorie
10. Specific energy Consumption can be expressed in which of the following units.
Tone/Kwh KCal/Kg Kcal/Kwh None of these
PART B x 2 10 Marks)
11. Give three types of solar energy collectors.
12. What is the type of generator used in wind power plant?
13. Write any two items used as biomass fuels.
14. Discuss the disadvantages of geothermal plant.
15. List out different methods of energy storage.
PART C x 16 80 Marks)
16. What is the principle of solar photovoltaic power generation? What are the main elements of a PV system? Or Explain with a neat sketch the working principle of standalone and grid connected solar system.
17. Explain briefly about the horizontal wind mills with neat sketch. Or Explain the principle and application of wind electric system. State the basic components and their working in wind electric system.
18. Write about energy from biomass. Write about energy from biogas.
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Or What are the factors affecting biogas generation? Write short note on bio energy by burning plants.
19. What are the main types of OTEC power plants? Describe their working in brief. Or Explain with neat sketch, the methods of operation of tidal power generation.
20. Explain the construction and working principle of fuel cell with neat sketch. Or Explain the performance characteristics of battery and its equivalent circuit.
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