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Q 1. Which of the following is renewable source of energy?
Coal
Natural gas
Sun light
Uranium
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Q 2. The source of energy in a hydro power station is:
Coal
Water
Sunlight
Diesel
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Q 3. The radiations that are responsible for the heating effect of solar raditions are:
Visible radiations
X-rays
Ultra-violet radiations
Infra-red-radiations
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Q 4. A renewable source of energy is
exhaustible
non-replenishable
limited
inexhaustible
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Q 5. Which one of the following is not used as a cooking fuel:
Compressed natural gas
Biogas
Liquified petroleum gas
Coal
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Q 6. Biogas is made mainly of ______ gas.
{tex}\mathrm{CH_4}{/tex}
{tex}\mathrm{CO_2}{/tex}
{tex}\mathrm{H_2SO_4}{/tex}
{tex}\mathrm{N_2}{/tex}
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Q 7. Which of the following is a by product of a biogas plant.
Fertiliser
Nutritious food
Cleaning detergent
Poisonous gas
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Q 8. Which of the following is not an example of a biomass energy source:
Wood
Gobar gas
Nuclear energy
Coal
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Q 9. Most of the sources of energy use us by respresent stored solar energy. Which of the following is not ultimately derived from the Sun's energy:
geothermal energy
wind energy
nuclear energy
biomass
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Q 10. Which of the following materials is used to make a photovoltaic solar cell:
Silicon
Carbon
Lead
Aluminium
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Q 11. The word 'energy crisis' stands for
Energy destruction
Energy creation
Conversion of energy from usable form to less usable form
None of these
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Q 12. Device that converts the potential energy of flowing water into electricity is
Solar cooker
Thermal power plant
Hydro power plant
Bio-gas plant
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Q 13. {tex}\mathrm{Assertion}{/tex}: In nuclear fission, a tremendous amount of energy is released if the mass of the original nucleus is just a little more than the sum of the masses of the individual products.
{tex}\mathrm{Reason}{/tex}: The difference in mass, {tex}\mathrm{\triangle m}{/tex}, between the original nucleus an the product nuclei gets converted to energy E according to equation
{tex}\mathrm E{/tex} = {tex}\triangle{/tex}{tex}\mathrm{mC^2}{/tex}
where C is speed of light in vacuum.
Both Assertion and Reason are true and Reason is the correct explanation of 'Assertion'
Both Assertion and Reason are true and Reason is not the correct explanation of 'Assertion'
Assertion is true but Reason is false
Assertion is false but Reason is true
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Q 14.
| Column-I | Column-II (Device) (Limitation) |
|---|---|
| (A) Hydro power plants | (P) Efficient commercial exploitation is difficult |
| (B) Wind mill | (Q) Special grade silicon is limited |
| (C) Solar cell | (R) Wind speed should higher than 15 km/h |
| (D) Ocean-thermal-energy conversion plants | (S) Large eco-systems are destroyed |
A - R
B - R
C - S
D - Q
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Q 15. The major source of energy in India is
Nuclear
Petroleum
Hydro
Coal
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Q 16. Bio-gas is produced in a bio-gas plant, by decomposition of complex compounds of the cow-dung slurry. This process is done by : Micro-organism in the
Presence of Oxygen
Absence of Oxygen
Presence of {tex}\mathrm{N_2}{/tex}
None of the these
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Q 17. Limitations in harnessing the kinetic energy of flowing water in hydro power plants is/are
The speed of flowing water should higher than 15 km/hr
The dam's can be constructed only in a limited number of places
Large ecosystems are destroyed when submerged under the water in dams
Both B and C
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Q 18.
| Column I | Column II |
|---|---|
| (A) Hydro power plants | (P) Produces electricity |
| (B) Solar Cell | (Q) Converts solar energy into electric energy |
| (C) Thermal power plant | (R) Converts potential energy of falling water into electricity |
| (D) Wind mill | (S) Converts kinetic energy of air into electricity |
A - Q
B - S
C - P
D - Q
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Q 19. The word 'energy crisis' stands for
Energy destruction
Energy creation
Conversion of energy from usable form to less usable form
None of these
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Q 20. Device that converts the potential energy of flowing water into electricity is
Solar cooker
Thermal power plant
Hydropower plant
Bio-gas plant
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Q 21. Which is the ultimate source of all forms of energy?
The sun
The moon
The wind
The air
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Q 22. Which of the following is the non - renewable source of energy?
Wind
sun
petroleum
biogas
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Q 23. Which of the following is the renewable source of energy?
natural gas
petroleum
coal
wind
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Q 24. Deforestation is the cause of
Sunrise
energy
flood
wind
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Q 25. Solar constant is equal to
1.4 KW /{tex}m^2{/tex}
5.2 KW /{tex}m^2{/tex}
3.1 KW /{tex}m^2{/tex}
None of these