Quiz  /  Power Plant Engineering Gate & PSU MCQ Questions With Answers

  • 1. 
    Pick up the wrong statement Fast breeder reactors

  • operate at extremely high power densities.
  • produce more fuel than they consume
  • are liquid-metal cooled
  • use water as coolant

  • 2. 
    The first nuclear power plant in India is located at

  • Baraeilly
  • Kalapakkam
  • Kota
  • Tarapur

  • 3. 
    In triggering fission, the following types of neutrons are desirable

  • fast moving
  • slow moving
  • critical neutrons
  • neutrons at rest
  • none of the above.

  • 4. 
    Moderator in nuclear plants is used to

  • reduce temperature
  • extract heat from nuclear reaction
  • control the reaction
  • cause collision with the fast moving neutrons to reduce their speed
  • moderate the radioactive pollution.

  • 5. 
    In boiling water reactor, moderator is

  • coolant itself
  • ferrite rod
  • graphite rod
  • liquid sodium metal
  • blanket of thorium.

  • 6. 
    Radioactive isotopes find application in

  • power generation
  • nuclear fission
  • nuclear fusion
  • medical field

  • 7. 
    Breeder reactors employ liquid metal coolant because it

  • acts as good moderator
  • produces maximum steam
  • transfers heat from core at a fast rate
  • breeds neutrons
  • increases rate of reaction in core.

  • 8. 
    The risk of radioactive hazard is greatest in the turbine with following reactor

  • pressurised water
  • boiling water
  • gas cooled
  • liquid metal cooled
  • all of the above.

  • 9. 
    In nuclear fission

  • the original elements change into completely different elements
  • the electrons of the element change
  • the molecules rearrange themselves to form other molecules
  • none of the above.

  • 10. 
    The function of control rods in nuclear plants is to

  • control temperature
  • control readioactive pollution
  • control absorption of neutron
  • control fuel consumption
  • none of the above.

  • 11. 
    The following present serious difficulty in designing reactor shield

  • alpha particles
  • beta particles
  • thermal neutrons
  • fast neutrons and gamma rays
  • none of the above.

  • 12. 
    The most commonly used moderator in nuclear plants is

  • deuterium
  • graphite
  • heavy water
  • concrete and bricks

  • 13. 
    In a fission process, maximum %age of energy is released as

  • kinetic energy of neutrons
  • kinetic energy of fission products
  • instantaneous release of gamma rays
  • gradual readioactive decay of fission products
  • none of the above.

  • 14. 
    Reactors designed for propulsion applications are designed for

  • natural uranium
  • enriched uranium
  • pure uranium
  • any type of uranium
  • none of the above.

  • 15. 
    Boiling water reactor employs

  • boiler
  • direct cycle of coolant system
  • double circuit system of coolant cycle
  • multi pass system
  • single circuit system.

  • 16. 
    Enriched uranium is one in which

  • %age of U235 has been artificially in-creased
  • %age of U has been artificially increased
  • %age of U234 has been artificially in-creased
  • extra energy is pumped from outside
  • all impurities have been removed.

  • 17. 
    The unit of radio-activity is

  • electron-volt
  • electron-ampere
  • curie
  • MeV
  • AMU.

  • 18. 
    Uranium-233 is produced

  • as basic raw material
  • by neutron irradiation of Uz
  • by neutron irradiation of thorium
  • artificially
  • in high capacity furnaces.

  • 19. 
    Electron-volt is the unit of

  • atomic power
  • energy
  • voltage
  • radio activity
  • there is no such unit.

  • 20. 
    A fast breeder reactor uses

  • 90% U-235
  • U-238
  • U-235
  • Pu-239
  • U-239.
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