| 1. | Which one of the following is a non-renewable energy source ? | |
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Water energy
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Tidal energy
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Fossil fuels
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Solar energy
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Report Question| 2. | Hydro power plants generate electricity from ? | |
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by hot liquid
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by potential energy of water
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a liquid
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by steam
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| 3. | the major problem in harnessing nuclear energy is how to ? | |
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convert nuclear energy into electrical energy.
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sustain the reaction.
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split nuclei.
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dispose off spent fuel safely.
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| 4. | Which of the following is the ultimate source of energy ? | |
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Uranium
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Fossil fuels
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Sun
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Water
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| 5. | Which is the ultimate source of energy ? | |
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Fossil fuels
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Uranium
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Sun
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Water
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| 6. | Tidal energy is a farm of energy obtained from the ? | |
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motion of the wave in sea
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tides occurs in the river water
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ocean in the form of tidal waves
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motion of surface water in ponds
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| 7. | Hydropower plant are located in the ? | |
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plane area
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hilly terrains
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none of above
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desert area
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| 8. | Solar cells are made of ? | |
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aluminium
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silver
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silicon
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germanium
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| 9. | Tidal energy is harnessed by constructing a dam across ? | |
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the river in plane areas
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the river in hilly trains
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narrow opening to the sea
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wide opening to the sea
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| 10. | Unit of calorific value of a substance is ? | |
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J kg
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J/kg
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Joules
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Kcal
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