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Practice Class 10 Science MCQ Questions of Source of Energy
1. An ideal source of energy should have
(a) higher calorific value
(b) easy transportability
(c) easy accessibility
(d) All of these
2. Select the important factor for the site selection of a thermal power plant.
(a) Distance from the populated area
(b) Availability of fuel
(c) Availability’ of water
(d) Cost of plant
3. Hydropower plant are located in the
(a) desert area
(b) plane area
(c) hilly terrains
(d) none-of above
4. Coke is more valuable when used:
(a) As a fuel for industrial boilers
(b) As an oxidizing agent
(c) As a reducing agent
(d) As a fuel in domestic ovens
5. In order to make efficient solar cooker, the cover of cooker box should be made of:
(a) Transparent plastic sheet
(b) Shining aluminium sheet
(c) Butter paper sheet
(d) Transparent glass
6. Which of the followings is not a fossil fuel?
(a) Coal
(b) Petroleum
(c) Natural gas
(d) Nuclear fuel
7. The rise of sea-water during high tide is caused by the gravitational pull of the:
(a) Sun
(b) Earth
(c) Moon
(d) Mars
8. The disposal of wastes produced in a nuclear power plant is a big problem because it is:
(a) Highly radioactive
(b) Highly inflammable
(c) Extremely foul smelling
(d) Too heavy
9. The energy efficient device for producing light is:
(a) DLF
(b) CFL
(c) FCL
(d) LPG
10. Biogas is a better fuel than animal dung cake because
(a) biogas has lower calorific value.
(b) animal dung cake has high calorific value
(c) biogas bums smoke and leaves no residue
(d) biogas is used as a fuel for cooking only whereas dung cake can be used for cooking, illuminant the lanterns.
11. Wind is caused due to
(a) uneven heating of earth’s surface
(b) rotation of earth
(c) local conditions
(d) All of these
12. Solar cells are made of
(a) germanium
(b) silicon
(c) silver
(d) aluminium
13. Which one of the following is a renewable energy source?
(a) Coal
(b) Petroleum
(c) Natural gas
(d) Wind energy
14. A good source of energy is a given small amount of energy:
(a) Gives small amount of energy
(b) It cannot be stored easily
(c) It should be costly
(d) It should be easily accessible
15. Natural gas is better fossil fuel because:
(a) It is formed by decomposition of plants and animals
(b) It is found in gas form
(c) It is costly
(d) It is smokeless and no ash is left
16. Hydro power plants generate electricity from:
(a) a liquid
(b) by hot liquid
(c) by steam
(d) by potential energy of water
17. Ocean thermal energy is due to
(a) energy stored by waves in the ocean
(b) temperature difference at different levels in the ocean
(c) pressure difference at different levels in the ocean
(d) tides arising out in the ocean
18. The main constituent of biogas is
(a) methane
(b) carbon dioxide
(c) hydrogen
(d) hydrogen sulphide
19. Choose the correct statement.
(a) Sun is considered as an inexhaustible source of energy
(b) There is infinite storage of fossil fuel inside the Earth
(c) Hydro and wind energy plants are non-polluting sources of energy
(d) Waste from a nuclear power plant can be easily disposed off
20. Which of the following is the ultimate source of energy for us?
(a) LPG
(b) Nuclear
(c) Solar
(d) CNG
Answer Key
1. (d) All of these
Explanation: These are the characterises of ideal source of energy.
2. (c) Availability of water
Explanation: Water is required to produce steam. Thermal power plants are setup near the coal field and transmission of electricity is easy than transporting fuel.
3. (c) hilly terrains
Explanation: Hydroelectric power plant are generally located in high hilly areas where dam can easily be built and large reservoir for storage of water can be obtained.
4. (c) As a reducing agent
5. (d) Transparent glass
6. (d) Nuclear fuel
7. (c) Moon
8. (a) Highly radioactive
9. (b) CFL
10. (c) biogas bums smoke and leaves no residue
Explanation: Biogas has high calorific value and leave no residue, no smoke after burning and can be used for domestic purpose, running engines and in gas lanterns for illumination.
11. (d) All of these
Explanation: All are the factors that responsible for the blowing of wind.
12. (b) silicon
Explanation: Special grade silicon is used for making solar cells.
13. (d) Wind energy
14.(d) It should be easily accessible
15. (d) It is smokeless and no ash is left
16. (d) by potential energy of water
17. (b) temperature difference at different levels in the ocean
18. (a) methane
19. (a) Sun is considered as an inexhaustible source of energy
20. (c) Solar
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