| 1. | An ideal source of energy should have ? | |
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easy accessibility
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easy transportability
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higher calorific value
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All of these
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Report Question| 2. | What are the disadvantage of solar energy ? | |
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Highly hazardous toxic material is used in the manufacturing of solar device.
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Daily average of solar energy varies from 4 to 7 kwh/m2
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A large surface area is required collect the solar
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All of the above are disadvantages.
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| 3. | Which part of the solar cooker is responsible for green house effect ? | |
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Mirror
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Outer cover of the solar cooker
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Coating with black colour inside the box
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Glass sheet
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| 4. | Choose the correct statement ? | |
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Sun can be taken as an inexhaustible source of energy
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Hydro and wind energy plants are non-polluting
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Waste from a nuclear power plant can be easily disposed off
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There is infinite storage of fossil fuel inside the earth
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| 5. | The working fluid in ocean thermal power plant is ? | |
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liquified petroleum gas
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charcoal
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Volatile liquid like ammonia
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petrol
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| 6. | The temperature inside the solar cooker ranges from ? | |
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100-140°C
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70-80°C
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150-200°C
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500-100°C
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| 7. | Which of the following problem is associated with a burning of coal ? | |
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ash with toxic metal supurity
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acid rain
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Carbon-dioxide emission
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all of these.
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| 8. | A device in which electricity is produced by the process of controlled nuclear fission reaction is called ? | |
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thermal power plant
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nuclear chain reaction
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hydel power plant
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nuclear reactor
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| 9. | Most of the sources of energy we use represent stored solar energy. Which of the following is not ultimately derived from the Sun’s energy ? | |
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bio-mass
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wind energy
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geothermal energy
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nuclear energy
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| 10. | Acid rain happens because ? | |
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earth atmosphere contains acids.
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electrical charges are produced due to friction amongst clouds.
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sun leads to heating of upper layer of atmosphere.
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burning of fossil fuels release oxides of carbon, nitrogen and sulphur in the atmosphere.
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