Page 1 :
Mr Sunil Valsange., Lesson no. 5. Towards Green Energy, I. Multiple choice questions., 1. In nuclear power plant ----------- is used to generate electricity., a. coal, b. plutonium, c. sunlight, d. water, 2. In thermal power plant -------- is used to generate electricity., a. coal, b. water, c. uranium, d. wind, 3. Which of the following is the source of green energy?, a. Coal, b. Wind energy c. Nuclear energy d. Natural gas, 4. In thermal power plant, when stem pass through -------, then it converts, into water., a. turbine, b. generator, c. condenser, d. tower, 5. Which of the following is used in solar cooker to harvest the solar, energy?, a. mirror, b. solar panels, c. silicon cell, d. glass lid, 6. In thermal power plants, the ----------- energy in the coal is converted, into electric energy through several steps., a. heat, b. light, c. chemical, d. uranium, 7. The solar cells which are used in solar power plant are made up of -----material., a. Aluminium b. Silicon, c. Copper, d. Glass, 8. Many solar strings connects in parallel and forms a ---------------., a. solar panel b. solar cell, c. solar cord, d. solar array, 9. ------------ converts the DC solar power to AC power., a. Inverter, b. Converter, c. Generator, d. Turbine, 10. Most of the electric power plants are based on the principle of -------., a. electric induction, b. magnetic induction, c. electromagnetic induction, d. generic induction, 11. ----------- converts kinetic energy into electric energy., a. Turbine, b. Boiler, c. Condenser, d. Generator, 12. ----------- is used to rotate the magnet in the generator., a. Fan, b. Turbine, c. Generator, d. Panels, 13. In ------ power plant, the potential energy of water stored in dam is, converted into kinetic energy., a. wind, b. solar, c. thermal, d. hydroelectric
Page 2 :
Mr Sunil Valsange., II. Whether the following statements are true or false. If false correct it and, write., , 1. Coal, petrol, diesel etc. are the examples of inexhaustible energy, sources., 2. In nuclear power plant a controlled chain reaction results in release of, thermal energy, which is used for electric energy generation., 3. Solar energy, wind energy, tidal energy, hydroelectric energy etc. are, the examples of green energy., 4. Solar cells are made up of a special material called semiconductors., 5. Many solar cells come together to form a solar strings., 6. Coal, natural gas and nuclear fuel are the green sources., 7. Solar energy, wind energy, tidal energy etc. are the exhaustible, energy sources., 8. The efficiency of power generation using natural gas plant is higher, than that of power generation plant based on coal., 9. Turbine is used to rotate the magnet in a generator., 10. In hydroelectric power plant, the kinetic energy in stored water in, dam is converted into potential energy of water., III. Match the pairs., “A” group, 1. Thermal power plant, 2. Nuclear power plant, 3. Hydroelectric power plant, 4. Solar power plant, , “B” group, , Water, Coal, Uranium, Silicon, Natural gas, , “A” group, , 1. Inexhaustible energy source, 2. Exhaustible energy source, “A” group, 1. Renewable energy source., 2. Non-renewable energy source., , “B” group, , Petrol and wind energy., Tidal and solar energy., Coal and diesel., “B” group, , Solar energy and Diesel., Wind and tidal energy., Coal and petrol.
Page 3 :
Mr Sunil Valsange., IV. Considering the relation between first pair complete the second pair., , 1. Sunlight: Renewable source of energy:: Crude oil: ---------------------., 2. Wind energy: Inexhaustible source of energy:: Coal: ------------------., 3. Fossil fuel: Conventional source of energy:: Tidal energy: -----------., 4. Crude oil: Non-green energy:: Hydroelectric energy: ----------------- ., 5. Thermal power plant: air pollution:: Nuclear power plant: ------------., 6. Hydroelectric plant: water storage:: Nuclear power plant: ------------ ., V. Write odd one out., 1. Coal, solar energy, wind energy, tidal energy., 2. Turbine, condenser, generator, photovoltaic cell., 3. Fire wood, coal, natural gas, thorium., 4. Hydroelectric power, wind energy, nuclear energy, solar power., 5. CNG, LPG, edible oil, crude oil., VI. Name the following., 1. The device which converts mechanical energy into electric energy., 2. Give 2 examples of renewable energy sources., 3. Give 2 examples of non-renewable energy sources., 4. Give 2 examples of convential energy sources., 5. Give 2 examples of non-convential energy sources., 6. Give 2 examples of elements which are used in nuclear power plant., 7. Name the power plant in which nuclear chain reaction takes place., 8. Give 2 examples of inexhaustible energy sources., 9. Give 2 examples of exhaustible energy sources., 10. Give 2 examples of ecofriendly energy sources., 11. Give 2 examples of green energy sources.
