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Nptel Sustainable Energy Technology Week 1 Solution

 



1) The burning of coal in a furnace involves which type of energy transformation?

 Electrical Energy to Mechanical Energy

 Thermal Energy to Mechanical Energy

 Chemical Energy to Thermal Energy

 Mechanical Energy to Chemical Energy


2) A wind turbine converts

 Chemical Energy to Electrical Energy

 Thermal Energy to Electrical Energy

 Nuclear Energy to Electrical Energy

 Mechanical Energy to Electrical Energy


3)A power plant burns 7000 Toe of coal on a given day. 30 % of the energy contained in coal is converted to electrical energy. How much electrical energy is generated by this power plant over a day in MW-hr unit? (Choose the number closest to your calculation)

 24,000 MW-hr

 12,000 MW-hr

 36,000 MW-hr

 48,000 MW-hr


4) Which of these are renewable energy technology? (Choose all that apply)

 Hydro power

 Coal power

 Solar power

 Nuclear power


5) The fastest growing regions with regards to primary energy supply over the last 50 years have been

 OECD countries

 African countries

 China and non OECD Asia

 Non OECD Europe and Eurasia


6) In 2019, all renewable energy sources together supply about

 14 % of total energy in the world

 24 % of total energy in the world

 34 % of total energy in the world

 4 % of total energy in the world


7) The largest fraction of electricity generated in the world in 2019 comes from which of these sources?

 Hydro

 Coal

 Natural gas

 Nuclear


State True or False.

8) The human development index of a nation will always increase linearly as the energy consumption increases for the country.

 True

 False


9) Nuclear fission is the major energy transformation process happening within the sun.

 True

 False


10) Waste – to – energy is a type of renewable energy technology.

 True

 False


11) Modern renewables like solar and wind still provide only a small fraction of the energy consumed by the world.

 True

 False


12) India is largely dependent on external imports to meet her primary energy demands.

 True

 False

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