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Thermal power plant

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In thermal power plant the turbines are rotated using steam. Here the coal is burnt. The heat energy liberated from this burning is used to heat the water in the boiler. This water produces steam of very high temperature and pressure. The kinetic energy in the steam rotates the turbines. The rotation of tubines produces its own mechanical kinetic energy. The generators connected to tubines produce electrical energy. The stem is condensed in a condenser and converted back into water. In this way in thermal power plant, thermal energy to kinetic enerhgy, kinetic energy into mechancal energy and mechanical energy to electrical energy, are the conversions that take place.
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Knowledge Check

  • Each question below is followed by three arguments numbered (A), (B) and (C). You have to decide which of the arguments is a 'strong' argument and which is a 'weak' argument. Statement : Should there be complete ban on setting up of thermal power plants in India? Arguments : (A) Yes, this is the only way to arrest further addition to environmental pollution. (B) No, there is a huge shortage of electricity in most parts of the country and hence generation o( electricity needs to be augmented. (C) No, many developed countries continue to set up thermal power plants in their countries.

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  • How many of the following statements regarding thermal pollution are INCORRECT ? a. Heated wastewaters flowing out of electricity-generating units , e.g., thermal power plants , constituent an important category of pollutants. b. Thermal wastewater eliminates or reduces the number of orgenisms sensitive to high temperatures. c. It may enhance the growth of plants and fish in extremely cold areas but. Only after causing damage to the indigenous flora and fauna. d. Thermal wastewater increases the number of orgenisms sensitive to high temperatures.

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  • Consider statements a—c about pollution: a. To control air pollution, all buses in Delhi were asked to run on unleaded petrol by the end of 2002. b. Electrostatic precipitator can remove 99% of particulate matter from thermal power plant exhaust. c. It is possible to estimate amount of organic matter.

    A
    b and c correct
    B
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