Home PYQs UPPSC UPPSC MCQs Prelims 2009 (GS Paper I)

Question

Enriched uranium are:

  1. Uranium rods kept under special shield
  2. Natural Uranium in which the component of radio active isotope U-235 is artificially increased
  3. Natural Uranium mixed with Thorium
  4. Uranium rods coated with Chromium

Answer:

Option B: Natural Uranium in which the component of radio active isotope U-235 is artificially increased

Detailed Solution:

The correct answer is “Natural Uranium in which the component of radio active isotope U-235 is artificially increased”.

Enriched uranium is natural uranium in which the percentage of the radioactive isotope uranium-235 has been increased through a process called isotope separation. This process is usually done in a centrifuge to separate uranium-235 from the heavier uranium-238 isotope.