Definitions of Nuclear Fission, Nuclear Chain Reaction and Main Stages of Nuclear Power Station
Q. Define nuclear fission and nuclear chain reaction.
Nuclear fission : It is the process in which a large nucleus splits into two smaller nuclel with the release of energy. It is the process in which a nucleus is divided into two or more fragments and neutrons and energy is released.
Nuclear chain reaction : It is the process in which neutrons released in fission produce an additional fission in atleast one further nucleus.This nucleus in turn produces neutrons and the process repeats.
Q. State what do you mean by “Nuclear waste disposal” in nuclear power station.
Nuclear waste disposal : Disposal as a final step in the management of radioactive waste involves confinement or isolation of these wastes from biosphere in the repositories. Based on the longevity and concentration of the radionuclide present in the waste, the repository could be either near-surface or in deep geological formation.
Q. List main stages of nuclear power station.
Following are the stages by which electricity is generated in nuclear power station :
- Uranium atoms split releasing energy, so fuel becomes hot. This heats the water turning it into the steam.
- The steam turns the turbine.
- The turbine turns a generator and electricity is produced.
- The electricity goes to the transformers to produce the correct voltage.