InterviewSolution
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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Match the following.AB1. Solar energy(i) Ganga2. Hydroelectricty (ii) wind mill3. Coal(iii) Sun4. wind(iv) Non- renewable5. Farakka barrage(v) water |
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| 2. |
Photovoltaic cells use the energy of 1. sun 2. wind 3. water 4. tides |
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Answer» Photovoltaic cells use the energy of sun. |
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| 3. |
What is the main difference between renewable an non-renewable energy resources? |
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Answer» Renewable Resources 1. These are those resources which can be renewed in a short time. 2. These do not cause any pollution to the environment. 3. These are the free gifts of nature. 4. Air, water and solar energy are the examples of renewable resources. Non-Renewable Resources 1. These are those resources which cannot be renewed in a short time. 2. These cause pollution to the environment. 3. These are not the free gifts of nature. 4. Coal, Petroleum and some minerals are the examples of the non-renewable resources. |
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| 4. |
What are renewable energy resources? |
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Answer» Renewable energy resources are those that come from natural sources and are naturally replenished. These include solar energy (sunlight), wind energy from windmill (wind), hydroelectricity (rain), tidal energy from waves (tides) and geothermal energy (energy from the heat of the earth). |
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| 5. |
Why do we need to conserve our energy resources ? |
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Answer» Conservation of energy is important, especially the conservation of conventional energy resources that may get exhausted in this century itself. With growing demands due to increasing population, we are overusing and wasting them. It is important that we soon find ways to use non-conventional sources of power as there is no danger of them being exhausted in our lifetime. In our daily life, we need to conserve energy. By remembering the 3 R’s and practising reuse, recycle, and reduce, we can save a lot of resources, utilize them judiciously, and conserve them for future generations. It should be realized that if all life-supporting resources are indiscriminately used then our very existence on earth would be in danger. Car pooling, turning off lights and fans when not required, cycling and using public transport are effective ways of saving energy. Alternative sources of energy, such as the sun, wind and water, must be extensively used. |
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| 6. |
Hydroelectricity is considered a good energy option for the future. Why ? |
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Answer» Hydropower is fueled by water, so it’s a clean fuel source, meaning it won’t pollute the air like power plants that bum fossil fuels, such as coal or natural gas. Hydroelectric power is a domestic source of energy, allowing each state to produce their own energy without being reliant on international fuel sources. The energy generated through hydropower relies on the water cycle, which is driven by the sun, making it a renewable power source, making it a more reliable and affordable source than fossil fuels that are rapidly being depleted. |
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| 7. |
Hydroelectricity is obtained by using 1. wind 2. water 3. coal 4. natural gas |
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Answer» Hydroelectricity is obtained by using water. |
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| 8. |
Wind mills have been used for many centuries in1. the USA2. the Netherlands3. Russia4. India |
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Answer» 2. the Netherlands |
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| 9. |
The coal that has the highest percentage of carbon is 1. anthracite 2. bituminous 3. lignite 4. peat |
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Answer» 1. anthracite |
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