Nuclear Energy Overview

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Questions and Answers

What process releases energy when atoms split into parts?

  • Nuclear fission (correct)
  • Chemical reaction
  • Atomic fusion
  • Ionization

Which type of energy is currently the basis for nuclear power?

  • Atomic fission (correct)
  • Renewable energy
  • Atomic fusion
  • Chemical energy

How do both nuclear power stations and fossil fuel stations produce energy?

  • By harnessing wind energy
  • By burning coal directly
  • By absorbing sunlight
  • By using energy to make steam and turn turbines (correct)

Which country has 6 nuclear power plants, including Chashma and Karachi power stations?

<p>Pakistan (B)</p> Signup and view all the answers

When was the Karachi Power Station commissioned?

<p>1971 (A)</p> Signup and view all the answers

What is the primary source of heat for generating thermal electricity from geothermal resources?

<p>Magma (D)</p> Signup and view all the answers

In geothermal energy production, what type of area is most suitable for trapping hot waters underground?

<p>Areas with high water consumption (A)</p> Signup and view all the answers

Which method of geothermal energy extraction involves pressurized steam bubbling up from underground?

<p>Hydrothermal reservoirs (C)</p> Signup and view all the answers

What creates pockets of high-pressure steam ready for collection in regions with extensive steam reserves due to volcanic activity?

<p>Cooling lava flows (C)</p> Signup and view all the answers

Which technology is used to convert thermal energy into electrical energy in thermal power plants?

<p>Hydroelectric generators (B)</p> Signup and view all the answers

What distinguishes geothermal energy from thermal electricity derived from burning fossil fuels?

<p>Geothermal energy relies on heat sources within the Earth, while fossil fuels rely on human activities (A)</p> Signup and view all the answers

What type of geological processes generate pure steam in places like Alaska's Valley of Ten Thousand Smokes?

<p>Volcanic activity (C)</p> Signup and view all the answers

What drives the generators to produce electricity from geothermal sources?

<p>Turbines powered by steam or hot fluids (C)</p> Signup and view all the answers

In thermal power plants, what is the purpose of the stationary blades attached to rotators?

<p>Move heated air across (C)</p> Signup and view all the answers

What is the main reason coal fires burn hotter compared to wood or biomass fuel in generating thermal electricity?

<p>Higher carbon atom content (B)</p> Signup and view all the answers

How does reducing atmospheric pressure contribute to the generation of electricity in thermal power plants?

<p>Depresses the boiling point of water, allowing rapid steam generation (D)</p> Signup and view all the answers

What is the mechanical work done by the expansion of steam in thermal power plants?

<p>Spinning turbine blades (B)</p> Signup and view all the answers

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